[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:01:13.52,0:01:15.53,Default,,0000,0000,0000,,Elevator: Which floor please?
Dialogue: 0,0:01:15.54,0:01:16.94,Default,,0000,0000,0000,,Girl: 3rd underfloor?
Dialogue: 0,0:01:16.95,0:01:18.40,Default,,0000,0000,0000,,Elevator: Thank you.
Dialogue: 0,0:01:23.49,0:01:25.80,Default,,0000,0000,0000,,Boy: Where are all the other stores?
Dialogue: 0,0:01:25.80,0:01:27.55,Default,,0000,0000,0000,,Girl: Well, I don't know really.
Dialogue: 0,0:01:27.57,0:01:31.57,Default,,0000,0000,0000,,But I do know that the store helped Caysie win first prize at the science fair.
Dialogue: 0,0:01:31.85,0:01:33.32,Default,,0000,0000,0000,,Boy: The store did THAT?
Dialogue: 0,0:01:33.91,0:01:36.19,Default,,0000,0000,0000,,Girl: Well, the person who works there did.
Dialogue: 0,0:01:36.19,0:01:38.01,Default,,0000,0000,0000,,Her name is Mrs. Molly Mcqule.
Dialogue: 0,0:01:38.08,0:01:38.83,Default,,0000,0000,0000,,(giggles)
Dialogue: 0,0:01:39.45,0:01:40.54,Default,,0000,0000,0000,,You can laugh if you want,
Dialogue: 0,0:01:40.54,0:01:44.29,Default,,0000,0000,0000,,but weren't you the one that needed help in science class?
Dialogue: 0,0:01:44.34,0:01:47.55,Default,,0000,0000,0000,,Yes, I guess. My grades haven't been all that great.
Dialogue: 0,0:01:47.59,0:01:49.83,Default,,0000,0000,0000,,And we're starting to study matter.
Dialogue: 0,0:01:56.93,0:01:57.94,Default,,0000,0000,0000,,Girl: Mrs. Mcqule
Dialogue: 0,0:02:01.22,0:02:02.29,Default,,0000,0000,0000,,Mrs. Mcqule: May I help you?
Dialogue: 0,0:02:02.29,0:02:03.87,Default,,0000,0000,0000,,Girl: Mrs.Mcqule.. It's me Amanda,
Dialogue: 0,0:02:03.87,0:02:05.66,Default,,0000,0000,0000,,You helped my friend with his science project,
Dialogue: 0,0:02:06.32,0:02:07.60,Default,,0000,0000,0000,,And well Kyle here.
Dialogue: 0,0:02:08.39,0:02:10.39,Default,,0000,0000,0000,,Mrs.Mcqule: As a matter of fact I can.
Dialogue: 0,0:02:10.39,0:02:11.19,Default,,0000,0000,0000,,Kyle: What?
Dialogue: 0,0:02:11.42,0:02:13.14,Default,,0000,0000,0000,,Mrs. Mcqule: The facts of matter.
Dialogue: 0,0:02:13.14,0:02:14.18,Default,,0000,0000,0000,,One second please.
Dialogue: 0,0:02:14.26,0:02:24.48,Default,,0000,0000,0000,,(Weird sounds)
Dialogue: 0,0:02:24.95,0:02:26.56,Default,,0000,0000,0000,,Mrs. Mcqule: Is there something I can show you in matter?
Dialogue: 0,0:02:26.56,0:02:27.47,Default,,0000,0000,0000,,Amanda: Mmm yeah.
Dialogue: 0,0:02:27.47,0:02:30.03,Default,,0000,0000,0000,,My friend Kyle's having some problems in class.
Dialogue: 0,0:02:30.03,0:02:31.50,Default,,0000,0000,0000,,They're studying matter.
Dialogue: 0,0:02:31.50,0:02:34.23,Default,,0000,0000,0000,,Kyle: Yeah. The properties and changes of matter.
Dialogue: 0,0:02:34.23,0:02:35.30,Default,,0000,0000,0000,,Can you help?
Dialogue: 0,0:02:35.51,0:02:37.76,Default,,0000,0000,0000,,Mrs. Mcqule: As a matter of fact I can.
Dialogue: 0,0:02:38.04,0:02:39.48,Default,,0000,0000,0000,,Don't you just love that?
Dialogue: 0,0:02:39.48,0:02:41.72,Default,,0000,0000,0000,,(Jokes around) Matter, facts.. get it?
Dialogue: 0,0:02:41.72,0:02:43.28,Default,,0000,0000,0000,,Ehh nevermind..
Dialogue: 0,0:02:43.28,0:02:45.33,Default,,0000,0000,0000,,Anyway, let's review what matter is.
Dialogue: 0,0:02:45.33,0:02:46.19,Default,,0000,0000,0000,,Amanda?
Dialogue: 0,0:02:46.19,0:02:48.72,Default,,0000,0000,0000,,Amanda: Matter is anything that takes up space..
Dialogue: 0,0:02:48.72,0:02:51.01,Default,,0000,0000,0000,,has mass and has properties that you
Dialogue: 0,0:02:51.01,0:02:53.36,Default,,0000,0000,0000,,can observe and describe.
Dialogue: 0,0:02:53.36,0:02:54.98,Default,,0000,0000,0000,,Kyle: But, what is a property?
Dialogue: 0,0:02:55.50,0:02:57.45,Default,,0000,0000,0000,,Amanda: A property is something special
Dialogue: 0,0:02:57.45,0:02:59.54,Default,,0000,0000,0000,,about an object. That makes it what it is.
Dialogue: 0,0:02:59.76,0:03:01.41,Default,,0000,0000,0000,,Like this bell, it's metal.
Dialogue: 0,0:03:02.51,0:03:03.60,Default,,0000,0000,0000,,Kyle: Oh, I get it.
Dialogue: 0,0:03:04.02,0:03:06.26,Default,,0000,0000,0000,,Mrs. Mcqule: Splendid! Blue star for you.
Dialogue: 0,0:03:06.75,0:03:08.69,Default,,0000,0000,0000,,I think you're really gonna like this.
Dialogue: 0,0:03:08.69,0:03:10.48,Default,,0000,0000,0000,,I just bought the upgrade. (Claps)
Dialogue: 0,0:03:11.62,0:03:13.23,Default,,0000,0000,0000,,Now, let's proceed.
Dialogue: 0,0:03:14.13,0:03:15.21,Default,,0000,0000,0000,,Computer voice: Matter is made up of
Dialogue: 0,0:03:15.21,0:03:16.32,Default,,0000,0000,0000,,elements
Dialogue: 0,0:03:16.32,0:03:18.40,Default,,0000,0000,0000,,or pure substances that are often called
Dialogue: 0,0:03:18.40,0:03:20.44,Default,,0000,0000,0000,,the building blocks of matter.
Dialogue: 0,0:03:20.48,0:03:22.26,Default,,0000,0000,0000,,And these building blocks are made up of
Dialogue: 0,0:03:22.39,0:03:24.33,Default,,0000,0000,0000,,small particles called atoms.
Dialogue: 0,0:03:25.69,0:03:27.50,Default,,0000,0000,0000,,Now each type of matter has its own
Dialogue: 0,0:03:27.50,0:03:29.65,Default,,0000,0000,0000,,physical properties. Which makes it
Dialogue: 0,0:03:29.65,0:03:31.50,Default,,0000,0000,0000,,different from other types of matter.
Dialogue: 0,0:03:32.55,0:03:34.66,Default,,0000,0000,0000,,Physical properties can be measured
Dialogue: 0,0:03:34.66,0:03:36.58,Default,,0000,0000,0000,,or observed without changing the
Dialogue: 0,0:03:36.58,0:03:38.18,Default,,0000,0000,0000,,matter into something else.
Dialogue: 0,0:03:38.53,0:03:40.99,Default,,0000,0000,0000,,Most of these properties remain consant
Dialogue: 0,0:03:40.99,0:03:43.25,Default,,0000,0000,0000,,and can be used to identify it.
Dialogue: 0,0:03:44.28,0:03:46.73,Default,,0000,0000,0000,,Now some properties are common to
Dialogue: 0,0:03:46.73,0:03:49.68,Default,,0000,0000,0000,,or found in all types of matter.
Dialogue: 0,0:03:50.58,0:03:52.58,Default,,0000,0000,0000,,All matter has mass, which is the
Dialogue: 0,0:03:52.58,0:03:54.62,Default,,0000,0000,0000,,amount of matter in an object.
Dialogue: 0,0:03:55.76,0:03:58.21,Default,,0000,0000,0000,,For example, an object with a large
Dialogue: 0,0:03:58.21,0:03:59.68,Default,,0000,0000,0000,,mass feels heavy.
Dialogue: 0,0:04:00.72,0:04:02.49,Default,,0000,0000,0000,,While an object with a small mass
Dialogue: 0,0:04:02.49,0:04:03.22,Default,,0000,0000,0000,,feels light.
Dialogue: 0,0:04:04.80,0:04:06.74,Default,,0000,0000,0000,,So you simply can't tell how much
Dialogue: 0,0:04:06.74,0:04:09.17,Default,,0000,0000,0000,,mass an object has just by looking at it.
Dialogue: 0,0:04:09.73,0:04:11.41,Default,,0000,0000,0000,,But you can measure it.
Dialogue: 0,0:04:13.02,0:04:15.51,Default,,0000,0000,0000,,Mrs.Mcqule: All matter also has volume
Dialogue: 0,0:04:15.51,0:04:17.35,Default,,0000,0000,0000,,which is the amount of space an
Dialogue: 0,0:04:17.35,0:04:19.74,Default,,0000,0000,0000,,object takes up. This ballon for example
Dialogue: 0,0:04:19.74,0:04:21.81,Default,,0000,0000,0000,,has more volume than.. say a
Dialogue: 0,0:04:21.81,0:04:24.82,Default,,0000,0000,0000,,golf ball. Because it takes up more space.
Dialogue: 0,0:04:25.13,0:04:27.78,Default,,0000,0000,0000,,I mean kids, it's just bigger.
Dialogue: 0,0:04:29.02,0:04:31.80,Default,,0000,0000,0000,,And all matter has density. Which is
Dialogue: 0,0:04:31.80,0:04:34.23,Default,,0000,0000,0000,,the property of matter that compares
Dialogue: 0,0:04:34.23,0:04:36.78,Default,,0000,0000,0000,,the mass, the amount of matter.
Dialogue: 0,0:04:36.78,0:04:40.19,Default,,0000,0000,0000,,To volume, the space it takes up.
Dialogue: 0,0:04:40.49,0:04:43.43,Default,,0000,0000,0000,,Kyle: So all matter has is physical properties.
Dialogue: 0,0:04:43.43,0:04:45.59,Default,,0000,0000,0000,,Well what about changes in matter?
Dialogue: 0,0:04:45.61,0:04:47.60,Default,,0000,0000,0000,,Mrs.Mcqule: Patience dear boy. Let's
Dialogue: 0,0:04:47.60,0:04:49.02,Default,,0000,0000,0000,,take a look at physical properties
Dialogue: 0,0:04:49.02,0:04:51.05,Default,,0000,0000,0000,,first and then we'll dive right in and
Dialogue: 0,0:04:51.05,0:04:52.13,Default,,0000,0000,0000,,solve your problem, ok?
Dialogue: 0,0:04:52.52,0:04:54.63,Default,,0000,0000,0000,,The atoms that come together to make
Dialogue: 0,0:04:54.63,0:04:58.63,Default,,0000,0000,0000,,up that matter give it it's particular physical properties.
Dialogue: 0,0:04:59.99,0:05:01.93,Default,,0000,0000,0000,,Computer voice: One physical property that's
Dialogue: 0,0:05:01.93,0:05:03.82,Default,,0000,0000,0000,,found in most matter is that it is,
Dialogue: 0,0:05:03.82,0:05:04.52,Default,,0000,0000,0000,,metallic.
Dialogue: 0,0:05:05.59,0:05:09.02,Default,,0000,0000,0000,,84 out of 112 known elements are metallic.
Dialogue: 0,0:05:09.54,0:05:10.68,Default,,0000,0000,0000,,That's 3/4's.
Dialogue: 0,0:05:11.75,0:05:14.12,Default,,0000,0000,0000,,In fact all elements can be divided into
Dialogue: 0,0:05:14.12,0:05:17.88,Default,,0000,0000,0000,,metallic and non-metallic elements.
Dialogue: 0,0:05:19.08,0:05:27.36,Default,,0000,0000,0000,,Elements like copper, gold, silver, aluminum
Dialogue: 0,0:05:27.36,0:05:31.38,Default,,0000,0000,0000,,iron, and nickel are metallic.
Dialogue: 0,0:05:32.49,0:05:36.70,Default,,0000,0000,0000,,All metals except mercury are solid at room temperature.
Dialogue: 0,0:05:37.02,0:05:39.47,Default,,0000,0000,0000,,Also, most metals look shiny and are
Dialogue: 0,0:05:39.47,0:05:41.29,Default,,0000,0000,0000,,found in the Earths ground.
Dialogue: 0,0:05:42.50,0:05:45.12,Default,,0000,0000,0000,,Most metals are said to be malleable
Dialogue: 0,0:05:45.12,0:05:47.09,Default,,0000,0000,0000,,which means that they can be
Dialogue: 0,0:05:47.09,0:05:48.70,Default,,0000,0000,0000,,hammered into thin sheets.
Dialogue: 0,0:05:48.80,0:05:51.37,Default,,0000,0000,0000,,Or pulled into long thin wires.
Dialogue: 0,0:05:52.46,0:05:55.16,Default,,0000,0000,0000,,Some metals are light, they are bendable
Dialogue: 0,0:05:55.16,0:05:57.15,Default,,0000,0000,0000,,like copper and aluminum.
Dialogue: 0,0:05:57.15,0:05:58.91,Default,,0000,0000,0000,,That are used to make wire.
Dialogue: 0,0:05:59.76,0:06:02.72,Default,,0000,0000,0000,,Some metals like iron are heavy, hard
Dialogue: 0,0:06:02.72,0:06:04.26,Default,,0000,0000,0000,,and very strong.
Dialogue: 0,0:06:05.73,0:06:08.66,Default,,0000,0000,0000,,Kyle: So matter that is metallic is usually
Dialogue: 0,0:06:08.66,0:06:11.73,Default,,0000,0000,0000,,shiny, solid at room temperature,
Dialogue: 0,0:06:11.73,0:06:13.41,Default,,0000,0000,0000,,malleable and strong.
Dialogue: 0,0:06:14.46,0:06:16.60,Default,,0000,0000,0000,,Mrs. Mcqule: You're a quick learner.
Dialogue: 0,0:06:16.60,0:06:20.60,Default,,0000,0000,0000,,Now 28 or 1/4 of all elements are
Dialogue: 0,0:06:20.60,0:06:23.97,Default,,0000,0000,0000,,classified as non-metals and their
Dialogue: 0,0:06:23.97,0:06:26.00,Default,,0000,0000,0000,,properties are very different from the
Dialogue: 0,0:06:26.00,0:06:27.08,Default,,0000,0000,0000,,properties of metals.
Dialogue: 0,0:06:27.53,0:06:28.17,Default,,0000,0000,0000,,Amanda: Like what?
Dialogue: 0,0:06:28.55,0:06:30.74,Default,,0000,0000,0000,,Mrs: Mcqule: Well, most non-metals are
Dialogue: 0,0:06:30.74,0:06:32.86,Default,,0000,0000,0000,,not shiny and can not be hammered into
Dialogue: 0,0:06:32.86,0:06:35.14,Default,,0000,0000,0000,,sheets or pulled into a wire. They are not
Dialogue: 0,0:06:35.14,0:06:37.41,Default,,0000,0000,0000,,malleable they are brittle.
Dialogue: 0,0:06:38.16,0:06:41.50,Default,,0000,0000,0000,,Oxygen and nitrogen are non-metals
Dialogue: 0,0:06:41.50,0:06:43.90,Default,,0000,0000,0000,,that are in the air. (blows)
Dialogue: 0,0:06:44.81,0:06:48.81,Default,,0000,0000,0000,,Carbon, a solid non-metal is dark.
Dialogue: 0,0:06:49.64,0:06:52.10,Default,,0000,0000,0000,,Now that we've established metals and
Dialogue: 0,0:06:52.10,0:06:53.90,Default,,0000,0000,0000,,non-metals. Let's say we take a look at
Dialogue: 0,0:06:53.90,0:06:55.82,Default,,0000,0000,0000,,some of the more exciting physical
Dialogue: 0,0:06:55.82,0:06:56.07,Default,,0000,0000,0000,,properties.
Dialogue: 0,0:06:56.52,0:06:59.08,Default,,0000,0000,0000,,Matter has an physical property called
Dialogue: 0,0:06:59.08,0:07:00.21,Default,,0000,0000,0000,,conductivity.
Dialogue: 0,0:07:02.22,0:07:03.85,Default,,0000,0000,0000,,Computer voice: Conductivity is the
Dialogue: 0,0:07:03.85,0:07:06.28,Default,,0000,0000,0000,,ability to pass energy along from one
Dialogue: 0,0:07:06.28,0:07:07.68,Default,,0000,0000,0000,,particle to another.
Dialogue: 0,0:07:08.55,0:07:10.62,Default,,0000,0000,0000,,There are three kinds of conductivity
Dialogue: 0,0:07:10.62,0:07:16.27,Default,,0000,0000,0000,,electrical, heat and sound.
Dialogue: 0,0:07:18.09,0:07:23.85,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:07:25.47,0:07:27.54,Default,,0000,0000,0000,,When matter can move electrical energy
Dialogue: 0,0:07:27.54,0:07:29.72,Default,,0000,0000,0000,,from one particle to another it is called
Dialogue: 0,0:07:29.72,0:07:33.42,Default,,0000,0000,0000,,an electrical conductor, metals used to
Dialogue: 0,0:07:33.42,0:07:36.31,Default,,0000,0000,0000,,make wire such as those made of copper
Dialogue: 0,0:07:36.31,0:07:37.48,Default,,0000,0000,0000,,are electrical conductors.
Dialogue: 0,0:07:38.52,0:07:40.51,Default,,0000,0000,0000,,The reason these metals are able to
Dialogue: 0,0:07:40.51,0:07:42.47,Default,,0000,0000,0000,,conduct electricity, is that the electrons
Dialogue: 0,0:07:42.47,0:07:44.77,Default,,0000,0000,0000,,fartest from the nucleus of a metal atom
Dialogue: 0,0:07:44.77,0:07:47.87,Default,,0000,0000,0000,,are only held lightly by that atom
Dialogue: 0,0:07:47.87,0:07:50.52,Default,,0000,0000,0000,,they are free to move to other metal atoms.
Dialogue: 0,0:07:51.46,0:07:53.62,Default,,0000,0000,0000,,This freedom of electron movement,
Dialogue: 0,0:07:53.62,0:07:55.59,Default,,0000,0000,0000,,allows metal to conduct electricity.
Dialogue: 0,0:07:56.78,0:07:59.10,Default,,0000,0000,0000,,Matter that is unable to conduct much
Dialogue: 0,0:07:59.10,0:08:01.13,Default,,0000,0000,0000,,electricity at all is called an
Dialogue: 0,0:08:01.13,0:08:03.44,Default,,0000,0000,0000,,Electric Insulator.
Dialogue: 0,0:08:04.18,0:08:05.91,Default,,0000,0000,0000,,This matter in non-metallic.
Dialogue: 0,0:08:06.94,0:08:09.52,Default,,0000,0000,0000,,In electric insulators, the electrons are
Dialogue: 0,0:08:09.52,0:08:11.16,Default,,0000,0000,0000,,bound tightly to their atoms.
Dialogue: 0,0:08:12.92,0:08:15.29,Default,,0000,0000,0000,,Glass, plastic and rubber are good examples.
Dialogue: 0,0:08:17.03,0:08:21.50,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:08:23.39,0:08:25.57,Default,,0000,0000,0000,,Some materials can conduct heat very
Dialogue: 0,0:08:25.57,0:08:25.88,Default,,0000,0000,0000,,well.
Dialogue: 0,0:08:27.18,0:08:29.20,Default,,0000,0000,0000,,These materials allow heat to flow
Dialogue: 0,0:08:29.20,0:08:30.14,Default,,0000,0000,0000,,through them easily.
Dialogue: 0,0:08:31.69,0:08:34.18,Default,,0000,0000,0000,,Metals conduct or transfer heat very quickly.
Dialogue: 0,0:08:37.34,0:08:39.32,Default,,0000,0000,0000,,For instance, have you ever noticed
Dialogue: 0,0:08:39.32,0:08:41.14,Default,,0000,0000,0000,,that when a car has been sitting in the
Dialogue: 0,0:08:41.14,0:08:44.12,Default,,0000,0000,0000,,sun, it's metal parts are much hotter than
Dialogue: 0,0:08:44.12,0:08:45.42,Default,,0000,0000,0000,,its plastic parts.
Dialogue: 0,0:08:46.75,0:08:48.60,Default,,0000,0000,0000,,That's because metal conducts heat
Dialogue: 0,0:08:48.60,0:08:50.59,Default,,0000,0000,0000,,better than non-metal plastic.
Dialogue: 0,0:08:50.84,0:08:57.92,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:08:58.86,0:09:00.94,Default,,0000,0000,0000,,Cooking pots and pans are made of metal.
Dialogue: 0,0:09:02.66,0:09:04.42,Default,,0000,0000,0000,,Because metal conducts heat well.
Dialogue: 0,0:09:05.61,0:09:07.61,Default,,0000,0000,0000,,The heat from the stove is quickly passed
Dialogue: 0,0:09:07.61,0:09:09.44,Default,,0000,0000,0000,,through the pan, into the food.
Dialogue: 0,0:09:11.10,0:09:13.03,Default,,0000,0000,0000,,Voila! The food is cooked.
Dialogue: 0,0:09:16.35,0:09:18.74,Default,,0000,0000,0000,,Other materials insulate against the
Dialogue: 0,0:09:18.74,0:09:19.63,Default,,0000,0000,0000,,passage of heat.
Dialogue: 0,0:09:19.63,0:09:20.83,Default,,0000,0000,0000,,Man: Ooh la la!
Dialogue: 0,0:09:21.59,0:09:22.100,Default,,0000,0000,0000,,Mrs.Mqcule: Which means that they do
Dialogue: 0,0:09:22.100,0:09:24.80,Default,,0000,0000,0000,,not readily permit heat to flow.
Dialogue: 0,0:09:25.22,0:09:26.13,Default,,0000,0000,0000,,(Glass shatters)
Dialogue: 0,0:09:26.13,0:09:27.86,Default,,0000,0000,0000,,Cooking pots should have wooden or
Dialogue: 0,0:09:27.86,0:09:30.75,Default,,0000,0000,0000,,plastic handles to insulate against heat.
Dialogue: 0,0:09:30.82,0:09:33.47,Default,,0000,0000,0000,,So you don't get burned when you touch them.
Dialogue: 0,0:09:33.77,0:09:39.73,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:09:40.80,0:09:43.40,Default,,0000,0000,0000,,This last kind of conduction is a bit
Dialogue: 0,0:09:43.40,0:09:44.61,Default,,0000,0000,0000,,different.
Dialogue: 0,0:09:44.87,0:09:47.30,Default,,0000,0000,0000,,This is the movement of sound energy.
Dialogue: 0,0:09:48.19,0:09:49.43,Default,,0000,0000,0000,,(Bell rings)
Dialogue: 0,0:09:49.71,0:09:52.17,Default,,0000,0000,0000,,Many metallic substances conduct sound
Dialogue: 0,0:09:52.17,0:09:53.23,Default,,0000,0000,0000,,very well.
Dialogue: 0,0:09:54.03,0:09:58.05,Default,,0000,0000,0000,,But a non-metallic substance, like glass
Dialogue: 0,0:09:58.67,0:10:01.43,Default,,0000,0000,0000,,or even water conduct sound well too.
Dialogue: 0,0:10:02.40,0:10:04.16,Default,,0000,0000,0000,,Matter with a poor ability to conduct
Dialogue: 0,0:10:04.16,0:10:06.62,Default,,0000,0000,0000,,sound is used as sound insulation.
Dialogue: 0,0:10:08.31,0:10:10.66,Default,,0000,0000,0000,,Special ceiling tiles are good examples
Dialogue: 0,0:10:10.66,0:10:11.46,Default,,0000,0000,0000,,of this.
Dialogue: 0,0:10:13.30,0:10:15.85,Default,,0000,0000,0000,,Mrs.Mcqule: Whether or not a substance is
Dialogue: 0,0:10:15.85,0:10:19.13,Default,,0000,0000,0000,,magnetic, is another physical property of
Dialogue: 0,0:10:19.34,0:10:20.01,Default,,0000,0000,0000,,matter.
Dialogue: 0,0:10:20.72,0:10:22.98,Default,,0000,0000,0000,,Objects made from iron and steel are
Dialogue: 0,0:10:24.75,0:10:25.78,Default,,0000,0000,0000,,magnetic.
Dialogue: 0,0:10:26.68,0:10:27.47,Default,,0000,0000,0000,,Plastic is not.
Dialogue: 0,0:10:28.64,0:10:30.79,Default,,0000,0000,0000,,Well we can't mention physical properties
Dialogue: 0,0:10:30.79,0:10:32.82,Default,,0000,0000,0000,,of matter without mentioning chemical
Dialogue: 0,0:10:32.82,0:10:33.53,Default,,0000,0000,0000,,properties as well.
Dialogue: 0,0:10:33.87,0:10:35.45,Default,,0000,0000,0000,,Kyle: Yeah. I'm about to study that in
Dialogue: 0,0:10:35.45,0:10:35.74,Default,,0000,0000,0000,,class.
Dialogue: 0,0:10:36.26,0:10:37.76,Default,,0000,0000,0000,,Mrs.Mcqule: Mmmm, how about a head start?
Dialogue: 0,0:10:38.93,0:10:41.13,Default,,0000,0000,0000,,Computer voice: Chemical properties
Dialogue: 0,0:10:41.13,0:10:42.06,Default,,0000,0000,0000,,describe the ability of matter
Dialogue: 0,0:10:42.06,0:10:43.58,Default,,0000,0000,0000,,to react or combine with
Dialogue: 0,0:10:43.58,0:10:46.78,Default,,0000,0000,0000,,another matter to form a new substance,
Dialogue: 0,0:10:46.78,0:10:48.00,Default,,0000,0000,0000,,a new kind of matter.
Dialogue: 0,0:10:49.22,0:10:51.18,Default,,0000,0000,0000,,Although it's pretty hard to observe a
Dialogue: 0,0:10:51.18,0:10:53.03,Default,,0000,0000,0000,,chemical property.
Dialogue: 0,0:10:53.38,0:10:56.36,Default,,0000,0000,0000,,For example, pyrite and gold look a lot
Dialogue: 0,0:10:56.36,0:10:59.34,Default,,0000,0000,0000,,alike, but pyrite is made of iron and
Dialogue: 0,0:10:59.34,0:11:00.94,Default,,0000,0000,0000,,sulfur atoms.
Dialogue: 0,0:11:01.38,0:11:03.61,Default,,0000,0000,0000,,It has some of the physical properties
Dialogue: 0,0:11:03.61,0:11:06.10,Default,,0000,0000,0000,,of gold, but it's fools gold.
Dialogue: 0,0:11:07.68,0:11:10.09,Default,,0000,0000,0000,,People sometimes use acid to tell gold
Dialogue: 0,0:11:10.09,0:11:11.21,Default,,0000,0000,0000,,and pyrite apart.
Dialogue: 0,0:11:12.94,0:11:15.20,Default,,0000,0000,0000,,The sulfur in pyrite reacts with the acid
Dialogue: 0,0:11:15.20,0:11:19.17,Default,,0000,0000,0000,,to produce a gas gold does not.
Dialogue: 0,0:11:21.19,0:11:23.10,Default,,0000,0000,0000,,Another chemical property is the ability
Dialogue: 0,0:11:23.10,0:11:23.68,Default,,0000,0000,0000,,to burn.
Dialogue: 0,0:11:24.49,0:11:25.83,Default,,0000,0000,0000,,This is called combustibility.
Dialogue: 0,0:11:27.34,0:11:29.43,Default,,0000,0000,0000,,Flame tests can be used to identify
Dialogue: 0,0:11:29.43,0:11:31.93,Default,,0000,0000,0000,,substances based on the color of the flame
Dialogue: 0,0:11:31.93,0:11:33.22,Default,,0000,0000,0000,,they produce when burned.
Dialogue: 0,0:11:34.68,0:11:36.75,Default,,0000,0000,0000,,Barium produces a green flame.
Dialogue: 0,0:11:38.00,0:11:39.92,Default,,0000,0000,0000,,Sodium produces a yellow flame.
Dialogue: 0,0:11:41.30,0:11:43.34,Default,,0000,0000,0000,,And potassium produces a violet flame.
Dialogue: 0,0:11:44.65,0:11:49.57,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:11:49.78,0:11:51.80,Default,,0000,0000,0000,,And now Kyle as for your request
Dialogue: 0,0:11:51.80,0:11:54.47,Default,,0000,0000,0000,,the changes of matter physically and
Dialogue: 0,0:11:54.47,0:11:55.96,Default,,0000,0000,0000,,chemically that is.
Dialogue: 0,0:11:56.76,0:11:58.47,Default,,0000,0000,0000,,Why don't we start with physical change,
Dialogue: 0,0:11:58.47,0:12:02.39,Default,,0000,0000,0000,,which is a change in state, shape or size
Dialogue: 0,0:12:02.61,0:12:04.52,Default,,0000,0000,0000,,without forming a new substance.
Dialogue: 0,0:12:05.76,0:12:07.66,Default,,0000,0000,0000,,A change in the state of matter is
Dialogue: 0,0:12:07.66,0:12:08.44,Default,,0000,0000,0000,,a physical change.
Dialogue: 0,0:12:10.19,0:12:12.53,Default,,0000,0000,0000,,For example, when water changes state
Dialogue: 0,0:12:12.53,0:12:15.12,Default,,0000,0000,0000,,it looks and feels different, but it is
Dialogue: 0,0:12:15.12,0:12:16.36,Default,,0000,0000,0000,,still water.
Dialogue: 0,0:12:16.100,0:12:20.100,Default,,0000,0000,0000,,Whether it's ice, liquid or vapor.
Dialogue: 0,0:12:21.65,0:12:23.38,Default,,0000,0000,0000,,Let's run with this, shall we?
Dialogue: 0,0:12:24.43,0:12:31.09,Default,,0000,0000,0000,,When you grind peanuts.. you get peanut
Dialogue: 0,0:12:31.09,0:12:31.79,Default,,0000,0000,0000,,butter.
Dialogue: 0,0:12:32.53,0:12:34.75,Default,,0000,0000,0000,,The size and shape have changed, but
Dialogue: 0,0:12:34.75,0:12:35.60,Default,,0000,0000,0000,,you still have peanuts.
Dialogue: 0,0:12:37.32,0:12:40.66,Default,,0000,0000,0000,,Remember a change in size or shape
Dialogue: 0,0:12:40.66,0:12:42.95,Default,,0000,0000,0000,,is a physical change, no new substances
Dialogue: 0,0:12:42.95,0:12:43.25,Default,,0000,0000,0000,,formed.
Dialogue: 0,0:12:44.52,0:12:46.84,Default,,0000,0000,0000,,Other physical changes include mixing
Dialogue: 0,0:12:46.84,0:12:49.38,Default,,0000,0000,0000,,together two or more kinds of matter.
Dialogue: 0,0:12:49.38,0:12:51.78,Default,,0000,0000,0000,,Or separating matter into the different
Dialogue: 0,0:12:51.78,0:12:55.20,Default,,0000,0000,0000,,parts as long as no new substances formed
Dialogue: 0,0:12:57.71,0:12:59.79,Default,,0000,0000,0000,,Most of the objects around us are not
Dialogue: 0,0:12:59.79,0:13:02.67,Default,,0000,0000,0000,,pure substances, but mixtures.
Dialogue: 0,0:13:02.67,0:13:05.59,Default,,0000,0000,0000,,A mixture is two or more parts blended
Dialogue: 0,0:13:05.59,0:13:10.62,Default,,0000,0000,0000,,together, yet they keep their own properties
Dialogue: 0,0:13:10.62,0:13:12.37,Default,,0000,0000,0000,,and do not turn into a new substance.
Dialogue: 0,0:13:12.99,0:13:14.83,Default,,0000,0000,0000,,In some mixtures it's easy to tell
Dialogue: 0,0:13:14.83,0:13:16.97,Default,,0000,0000,0000,,that each type of matter keeps its
Dialogue: 0,0:13:16.97,0:13:19.21,Default,,0000,0000,0000,,physical properties, because you can still
Dialogue: 0,0:13:19.21,0:13:21.73,Default,,0000,0000,0000,,see the individual parts of the mixture.
Dialogue: 0,0:13:22.30,0:13:24.31,Default,,0000,0000,0000,,Examples of this could be salad,
Dialogue: 0,0:13:25.18,0:13:32.20,Default,,0000,0000,0000,,spaghetti, tacos, and trail mix.
Dialogue: 0,0:13:33.58,0:13:36.00,Default,,0000,0000,0000,,In other mixtures the parts are hard to see.
Dialogue: 0,0:13:36.64,0:13:39.18,Default,,0000,0000,0000,,Like sugar or salt mixed with water.
Dialogue: 0,0:13:40.87,0:13:43.05,Default,,0000,0000,0000,,Also, in a mixture you can put the
Dialogue: 0,0:13:43.05,0:13:45.28,Default,,0000,0000,0000,,substances together in any amount.
Dialogue: 0,0:13:46.31,0:13:48.96,Default,,0000,0000,0000,,For example, tea can be very strong
Dialogue: 0,0:13:48.96,0:13:50.36,Default,,0000,0000,0000,,or very weak.
Dialogue: 0,0:13:51.73,0:13:54.27,Default,,0000,0000,0000,,Mixtures can be made of solids, liquids
Dialogue: 0,0:13:54.27,0:13:57.73,Default,,0000,0000,0000,,or gases and can be made with a
Dialogue: 0,0:13:57.73,0:13:59.97,Default,,0000,0000,0000,,combination of different forms of matter.
Dialogue: 0,0:13:59.97,0:14:02.40,Default,,0000,0000,0000,,Air is a mixture of different gases.
Dialogue: 0,0:14:04.50,0:14:06.36,Default,,0000,0000,0000,,Mixtures can also be separated using
Dialogue: 0,0:14:06.36,0:14:08.93,Default,,0000,0000,0000,,their physical properties like size, shape,
Dialogue: 0,0:14:08.93,0:14:11.96,Default,,0000,0000,0000,,color, volume, density and state.
Dialogue: 0,0:14:14.17,0:14:16.35,Default,,0000,0000,0000,,This is called a physical separation.
Dialogue: 0,0:14:17.97,0:14:20.08,Default,,0000,0000,0000,,It's important to remember that subsatnces
Dialogue: 0,0:14:20.08,0:14:21.75,Default,,0000,0000,0000,,that make up mixtures; keep their
Dialogue: 0,0:14:21.75,0:14:24.33,Default,,0000,0000,0000,,physical properties as well as their
Dialogue: 0,0:14:24.33,0:14:25.62,Default,,0000,0000,0000,,chemical properties.
Dialogue: 0,0:14:26.76,0:14:29.10,Default,,0000,0000,0000,,Some mixtures are not as easily separated.
Dialogue: 0,0:14:29.10,0:14:31.52,Default,,0000,0000,0000,,These "hard-to-separate" mixtures are
Dialogue: 0,0:14:31.52,0:14:32.64,Default,,0000,0000,0000,,called solutions.
Dialogue: 0,0:14:34.52,0:14:36.93,Default,,0000,0000,0000,,A solution is a mixture in which
Dialogue: 0,0:14:36.93,0:14:39.02,Default,,0000,0000,0000,,substances are completely blended,
Dialogue: 0,0:14:39.02,0:14:40.59,Default,,0000,0000,0000,,so that the properties are the same
Dialogue: 0,0:14:40.59,0:14:40.92,Default,,0000,0000,0000,,throughout.
Dialogue: 0,0:14:42.67,0:14:44.61,Default,,0000,0000,0000,,The substances are mixed evenly, so they
Dialogue: 0,0:14:44.61,0:14:46.35,Default,,0000,0000,0000,,stay blended.
Dialogue: 0,0:14:47.46,0:14:49.60,Default,,0000,0000,0000,,If you put a spoonful of sugar into a
Dialogue: 0,0:14:49.60,0:14:52.74,Default,,0000,0000,0000,,glass of liquid water and stir; the sugar
Dialogue: 0,0:14:52.74,0:14:54.93,Default,,0000,0000,0000,,seems to disappear and the glass still
Dialogue: 0,0:14:54.93,0:14:56.39,Default,,0000,0000,0000,,contains a clear liquid.
Dialogue: 0,0:14:57.45,0:14:59.38,Default,,0000,0000,0000,,The sugar and the water form a kind
Dialogue: 0,0:14:59.38,0:15:01.52,Default,,0000,0000,0000,,of mixture called a solution.
Dialogue: 0,0:15:02.77,0:15:04.97,Default,,0000,0000,0000,,Although you can't see it, you can tell
Dialogue: 0,0:15:05.16,0:15:07.50,Default,,0000,0000,0000,,the sugar's in the water, because it tastes
Dialogue: 0,0:15:07.50,0:15:07.76,Default,,0000,0000,0000,,sweet.
Dialogue: 0,0:15:09.11,0:15:11.41,Default,,0000,0000,0000,,When the water evaporates, the sugar
Dialogue: 0,0:15:11.41,0:15:13.61,Default,,0000,0000,0000,,will be left behind and you can see it
Dialogue: 0,0:15:13.61,0:15:14.19,Default,,0000,0000,0000,,again.
Dialogue: 0,0:15:15.42,0:15:17.43,Default,,0000,0000,0000,,People drink a lot of types of solutions,
Dialogue: 0,0:15:17.55,0:15:20.93,Default,,0000,0000,0000,,like tea, coffee, fruit juices, and soft
Dialogue: 0,0:15:20.93,0:15:21.19,Default,,0000,0000,0000,,drinks.
Dialogue: 0,0:15:22.54,0:15:24.67,Default,,0000,0000,0000,,When one material forms a solution
Dialogue: 0,0:15:24.67,0:15:28.49,Default,,0000,0000,0000,,with another material; we say it dissolves.
Dialogue: 0,0:15:28.57,0:15:31.08,Default,,0000,0000,0000,,The substance in a solution dissolve or
Dialogue: 0,0:15:31.47,0:15:33.40,Default,,0000,0000,0000,,separate into their most basic particles.
Dialogue: 0,0:15:34.76,0:15:36.99,Default,,0000,0000,0000,,Molecules that are too small to be seen.
Dialogue: 0,0:15:38.20,0:15:40.63,Default,,0000,0000,0000,,As sugar dissolves in water, molecules of
Dialogue: 0,0:15:40.63,0:15:42.62,Default,,0000,0000,0000,,solid sugar are pulled away from
Dialogue: 0,0:15:42.62,0:15:44.48,Default,,0000,0000,0000,,eachother by water molecules.
Dialogue: 0,0:15:45.73,0:15:47.46,Default,,0000,0000,0000,,Very quickly the sugar molecules
Dialogue: 0,0:15:47.46,0:15:49.50,Default,,0000,0000,0000,,spread to all parts of the solution.
Dialogue: 0,0:15:50.60,0:15:52.37,Default,,0000,0000,0000,,You can no longer see the sugar,
Dialogue: 0,0:15:52.38,0:15:54.72,Default,,0000,0000,0000,,because the very small sugar particles
Dialogue: 0,0:15:54.72,0:15:57.22,Default,,0000,0000,0000,,are mixed evenly with the water particles.
Dialogue: 0,0:15:58.33,0:16:00.73,Default,,0000,0000,0000,,Unlike the mixture of granola, that might
Dialogue: 0,0:16:00.73,0:16:02.86,Default,,0000,0000,0000,,have six raisins in one spoonful
Dialogue: 0,0:16:03.06,0:16:04.42,Default,,0000,0000,0000,,and three in the next.
Dialogue: 0,0:16:05.50,0:16:07.85,Default,,0000,0000,0000,,Any part of the solution is identical to
Dialogue: 0,0:16:07.85,0:16:09.66,Default,,0000,0000,0000,,any other part of the solution.
Dialogue: 0,0:16:10.77,0:16:12.92,Default,,0000,0000,0000,,Some solids dissolve in water and some
Dialogue: 0,0:16:12.92,0:16:13.34,Default,,0000,0000,0000,,do not.
Dialogue: 0,0:16:14.46,0:16:16.75,Default,,0000,0000,0000,,Solubility is the measure of the amount
Dialogue: 0,0:16:16.75,0:16:18.62,Default,,0000,0000,0000,,of a material that will dissolve
Dialogue: 0,0:16:18.62,0:16:19.76,Default,,0000,0000,0000,,in another material.
Dialogue: 0,0:16:20.52,0:16:23.18,Default,,0000,0000,0000,,For example, sugar is soluble in water,
Dialogue: 0,0:16:24.15,0:16:26.35,Default,,0000,0000,0000,,but ground black pepper is not.
Dialogue: 0,0:16:27.92,0:16:31.20,Default,,0000,0000,0000,,Try stirring sand into water, while you're
Dialogue: 0,0:16:31.20,0:16:33.22,Default,,0000,0000,0000,,stirring the sand mixes with the water
Dialogue: 0,0:16:33.51,0:16:35.12,Default,,0000,0000,0000,,but does not dissolve.
Dialogue: 0,0:16:35.61,0:16:37.81,Default,,0000,0000,0000,,When you stop stirring the sand falls
Dialogue: 0,0:16:37.93,0:16:39.28,Default,,0000,0000,0000,,to the bottom of the jar.
Dialogue: 0,0:16:40.16,0:16:42.98,Default,,0000,0000,0000,,The solubility of sand in water is zero.
Dialogue: 0,0:16:43.68,0:16:46.03,Default,,0000,0000,0000,,No amount of sand dissolves in water.
Dialogue: 0,0:16:47.03,0:16:49.33,Default,,0000,0000,0000,,Liquid solutions are usually transparent,
Dialogue: 0,0:16:49.85,0:16:52.17,Default,,0000,0000,0000,,they're evenly colored, and they can
Dialogue: 0,0:16:52.17,0:16:53.89,Default,,0000,0000,0000,,never separate into layers.
Dialogue: 0,0:16:55.16,0:16:57.50,Default,,0000,0000,0000,,Compare the mixture of oil and vinegar,
Dialogue: 0,0:16:57.50,0:17:00.00,Default,,0000,0000,0000,,as in salad dressing to a solution; like
Dialogue: 0,0:17:00.00,0:17:01.28,Default,,0000,0000,0000,,this drink mix.
Dialogue: 0,0:17:02.49,0:17:04.85,Default,,0000,0000,0000,,Also, solutions don't have to be liquid.
Dialogue: 0,0:17:06.06,0:17:07.82,Default,,0000,0000,0000,,They can be solids and gases too.
Dialogue: 0,0:17:08.98,0:17:10.76,Default,,0000,0000,0000,,In the sugar and water solution;
Dialogue: 0,0:17:10.76,0:17:13.42,Default,,0000,0000,0000,,a solid, sugar was mixed with a liquid,
Dialogue: 0,0:17:13.42,0:17:13.83,Default,,0000,0000,0000,,water.
Dialogue: 0,0:17:15.31,0:17:18.05,Default,,0000,0000,0000,,In a bottle of soda, the gas carbon dioxide
Dialogue: 0,0:17:18.88,0:17:21.18,Default,,0000,0000,0000,,is dissolved in or spread evenly
Dialogue: 0,0:17:21.18,0:17:22.37,Default,,0000,0000,0000,,throughout the liquid.
Dialogue: 0,0:17:23.16,0:17:24.98,Default,,0000,0000,0000,,When you lift the top off the bottle,
Dialogue: 0,0:17:25.02,0:17:26.74,Default,,0000,0000,0000,,you can see thousands of bubbles of
Dialogue: 0,0:17:26.74,0:17:29.08,Default,,0000,0000,0000,,carbon dioxide gas start to rise through
Dialogue: 0,0:17:29.10,0:17:30.74,Default,,0000,0000,0000,,the liquid an into the air.
Dialogue: 0,0:17:31.100,0:17:33.83,Default,,0000,0000,0000,,Mixtures of metals are solid solutions.
Dialogue: 0,0:17:35.09,0:17:37.45,Default,,0000,0000,0000,,Brass is a solution of zinc and copper.
Dialogue: 0,0:17:38.80,0:17:40.90,Default,,0000,0000,0000,,It is made by melting two metals
Dialogue: 0,0:17:40.90,0:17:41.33,Default,,0000,0000,0000,,together.
Dialogue: 0,0:17:42.29,0:17:43.79,Default,,0000,0000,0000,,Gases can form solutions too.
Dialogue: 0,0:17:44.82,0:17:46.77,Default,,0000,0000,0000,,Air is a solution of several gases.
Dialogue: 0,0:17:47.95,0:17:50.10,Default,,0000,0000,0000,,Physical changes can sometimes be easily
Dialogue: 0,0:17:50.10,0:17:52.22,Default,,0000,0000,0000,,reversed, but not always.
Dialogue: 0,0:17:53.62,0:17:56.10,Default,,0000,0000,0000,,Melting an ice cube can easily be reversed
Dialogue: 0,0:17:56.10,0:17:58.28,Default,,0000,0000,0000,,by cooling until it freezes again.
Dialogue: 0,0:17:59.48,0:18:01.70,Default,,0000,0000,0000,,Stirring sugar into water can be reversed
Dialogue: 0,0:18:02.10,0:18:04.06,Default,,0000,0000,0000,,by letting the water evaporate.
Dialogue: 0,0:18:05.42,0:18:07.80,Default,,0000,0000,0000,,On the other hand, it would not be
Dialogue: 0,0:18:07.80,0:18:10.64,Default,,0000,0000,0000,,so easy to get peanuts back once they
Dialogue: 0,0:18:10.64,0:18:12.10,Default,,0000,0000,0000,,were all ground up.
Dialogue: 0,0:18:13.94,0:18:15.93,Default,,0000,0000,0000,,Kyle: So if a change seems easy
Dialogue: 0,0:18:15.93,0:18:17.90,Default,,0000,0000,0000,,to reverse, it is more likely to be a
Dialogue: 0,0:18:17.90,0:18:18.45,Default,,0000,0000,0000,,physical change.
Dialogue: 0,0:18:20.82,0:18:22.75,Default,,0000,0000,0000,,Amanda: But not all combinations of
Dialogue: 0,0:18:22.75,0:18:24.92,Default,,0000,0000,0000,,matter can be separated physically into
Dialogue: 0,0:18:24.92,0:18:25.53,Default,,0000,0000,0000,,their parts.
Dialogue: 0,0:18:27.14,0:18:28.54,Default,,0000,0000,0000,,Mrs.Mcqule: Well done.
Dialogue: 0,0:18:28.54,0:18:30.28,Default,,0000,0000,0000,,Now for something really thrilling
Dialogue: 0,0:18:30.42,0:18:31.30,Default,,0000,0000,0000,,chemical changes.
Dialogue: 0,0:18:32.98,0:18:37.78,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:18:38.99,0:18:40.97,Default,,0000,0000,0000,,Mrs.Mcqule: Unlike the often "easy-to
Dialogue: 0,0:18:40.97,0:18:43.04,Default,,0000,0000,0000,,-reverse" physical changes, chemical
Dialogue: 0,0:18:43.04,0:18:45.72,Default,,0000,0000,0000,,changes don't turn around so easily.
Dialogue: 0,0:18:46.23,0:18:48.41,Default,,0000,0000,0000,,These changes occur when atoms link
Dialogue: 0,0:18:48.41,0:18:49.80,Default,,0000,0000,0000,,together in new ways.
Dialogue: 0,0:18:50.88,0:18:52.76,Default,,0000,0000,0000,,This is called a chemical reaction.
Dialogue: 0,0:18:54.18,0:18:56.45,Default,,0000,0000,0000,,During chemical reactions the atoms in
Dialogue: 0,0:18:56.45,0:18:58.30,Default,,0000,0000,0000,,the substances that were put together,
Dialogue: 0,0:18:58.30,0:19:01.19,Default,,0000,0000,0000,,rearranged to form a new substance with
Dialogue: 0,0:19:01.19,0:19:02.52,Default,,0000,0000,0000,,different properties.
Dialogue: 0,0:19:02.52,0:19:04.74,Default,,0000,0000,0000,,The changes in the linking patterns of the
Dialogue: 0,0:19:04.74,0:19:06.55,Default,,0000,0000,0000,,atoms create the new substances.
Dialogue: 0,0:19:07.81,0:19:09.95,Default,,0000,0000,0000,,These new substances have properties
Dialogue: 0,0:19:09.95,0:19:12.18,Default,,0000,0000,0000,,different from the original substances
Dialogue: 0,0:19:12.18,0:19:13.87,Default,,0000,0000,0000,,from which they were formed.
Dialogue: 0,0:19:15.12,0:19:16.88,Default,,0000,0000,0000,,Sugar is made when the right amounts
Dialogue: 0,0:19:16.88,0:19:19.72,Default,,0000,0000,0000,,of carbon, oxygen, and hydrogen atoms
Dialogue: 0,0:19:19.72,0:19:20.88,Default,,0000,0000,0000,,are mixed.
Dialogue: 0,0:19:22.57,0:19:24.55,Default,,0000,0000,0000,,A chemical reaction can cause sugar to
Dialogue: 0,0:19:24.55,0:19:26.36,Default,,0000,0000,0000,,break apart into it's original elements
Dialogue: 0,0:19:27.06,0:19:29.82,Default,,0000,0000,0000,,or atoms; carbon, oxygen and hydrogen.
Dialogue: 0,0:19:31.39,0:19:33.94,Default,,0000,0000,0000,,There are signals that a chemical change
Dialogue: 0,0:19:33.94,0:19:35.20,Default,,0000,0000,0000,,is happening.
Dialogue: 0,0:19:35.20,0:19:36.96,Default,,0000,0000,0000,,They include a formation of a gas,
Dialogue: 0,0:19:36.96,0:19:39.85,Default,,0000,0000,0000,,a color change, or light and heat changes
Dialogue: 0,0:19:39.85,0:19:41.18,Default,,0000,0000,0000,,caused by the release of energy.
Dialogue: 0,0:19:42.66,0:19:45.00,Default,,0000,0000,0000,,The reaction between baking soda and
Dialogue: 0,0:19:45.00,0:19:47.50,Default,,0000,0000,0000,,vinegar is an example of a chemical change.
Dialogue: 0,0:19:49.04,0:19:51.03,Default,,0000,0000,0000,,When these two materials are mixed gas
Dialogue: 0,0:19:51.03,0:19:52.28,Default,,0000,0000,0000,,bubbles form.
Dialogue: 0,0:19:53.29,0:19:55.25,Default,,0000,0000,0000,,A change in the linking pattern of the
Dialogue: 0,0:19:55.25,0:19:57.39,Default,,0000,0000,0000,,atoms in the liquid vinegar and solid
Dialogue: 0,0:19:57.39,0:19:59.60,Default,,0000,0000,0000,,baking soda, cause a new substance,
Dialogue: 0,0:19:59.60,0:20:02.52,Default,,0000,0000,0000,,carbon dioxide, a gas, to form.
Dialogue: 0,0:20:03.86,0:20:04.59,Default,,0000,0000,0000,,Kyle: Ahh.
Dialogue: 0,0:20:04.59,0:20:06.85,Default,,0000,0000,0000,,One of the signals, a gas was formed.
Dialogue: 0,0:20:08.81,0:20:10.59,Default,,0000,0000,0000,,Computer voice: With a burning candle,
Dialogue: 0,0:20:10.59,0:20:12.23,Default,,0000,0000,0000,,many changes are happening.
Dialogue: 0,0:20:12.23,0:20:15.25,Default,,0000,0000,0000,,Wax melts, runs down the side and turns
Dialogue: 0,0:20:15.25,0:20:17.96,Default,,0000,0000,0000,,solid again, this is a physical change.
Dialogue: 0,0:20:19.12,0:20:21.66,Default,,0000,0000,0000,,However, some of the wax turns into
Dialogue: 0,0:20:21.66,0:20:25.22,Default,,0000,0000,0000,,carbon dioxide gas and steam when it
Dialogue: 0,0:20:25.22,0:20:27.04,Default,,0000,0000,0000,,combines with oxygen in the air.
Dialogue: 0,0:20:28.07,0:20:30.95,Default,,0000,0000,0000,,This chemical change releases enough heat
Dialogue: 0,0:20:30.98,0:20:32.35,Default,,0000,0000,0000,,to make a flame.
Dialogue: 0,0:20:33.26,0:20:34.45,Default,,0000,0000,0000,,Amanda: A heat change!
Dialogue: 0,0:20:35.51,0:20:37.42,Default,,0000,0000,0000,,Computer voice: Rust forms when iron
Dialogue: 0,0:20:37.42,0:20:39.72,Default,,0000,0000,0000,,atoms in steel, react with oxygen from
Dialogue: 0,0:20:39.72,0:20:40.11,Default,,0000,0000,0000,,the air.
Dialogue: 0,0:20:42.09,0:20:44.37,Default,,0000,0000,0000,,The reaction is very complex and needs
Dialogue: 0,0:20:44.37,0:20:46.19,Default,,0000,0000,0000,,moisture to occur.
Dialogue: 0,0:20:47.22,0:20:49.45,Default,,0000,0000,0000,,When iron rusts it turns red or brown.
Dialogue: 0,0:20:51.03,0:20:52.15,Default,,0000,0000,0000,,Kyle: A color change.
Dialogue: 0,0:20:52.52,0:20:54.39,Default,,0000,0000,0000,,Mrs.Mcqule:Yes, but are you sure this
Dialogue: 0,0:20:54.39,0:20:56.68,Default,,0000,0000,0000,,is a chemical reaction? Or a physical
Dialogue: 0,0:20:56.68,0:20:57.26,Default,,0000,0000,0000,,change?
Dialogue: 0,0:20:58.17,0:20:59.16,Default,,0000,0000,0000,,Let's find out.
Dialogue: 0,0:21:00.63,0:21:03.18,Default,,0000,0000,0000,,Rust is powdery and no longer shiny
Dialogue: 0,0:21:03.18,0:21:06.63,Default,,0000,0000,0000,,like iron, it also does not bend like iron,
Dialogue: 0,0:21:07.43,0:21:13.48,Default,,0000,0000,0000,,iron can conduct electricity while rust
Dialogue: 0,0:21:13.48,0:21:17.69,Default,,0000,0000,0000,,does not, rust melts at a much higher
Dialogue: 0,0:21:17.69,0:21:21.69,Default,,0000,0000,0000,,temperature than iron, the density
Dialogue: 0,0:21:21.69,0:21:23.93,Default,,0000,0000,0000,,of rust is much less than the density
Dialogue: 0,0:21:23.93,0:21:27.25,Default,,0000,0000,0000,,of iron and rust does not react with
Dialogue: 0,0:21:27.25,0:21:28.74,Default,,0000,0000,0000,,oxygen as iron does.
Dialogue: 0,0:21:30.33,0:21:32.85,Default,,0000,0000,0000,,So is this a physical or chemical change?
Dialogue: 0,0:21:33.30,0:21:35.04,Default,,0000,0000,0000,,Both: Chemical change.
Dialogue: 0,0:21:35.62,0:21:37.69,Default,,0000,0000,0000,,Mrs.Mcqule: Right, we can see that a
Dialogue: 0,0:21:37.69,0:21:39.93,Default,,0000,0000,0000,,new substance is definitely been formed
Dialogue: 0,0:21:39.93,0:21:42.59,Default,,0000,0000,0000,,and a chemical reaction, has taken place.
Dialogue: 0,0:21:43.14,0:21:47.16,Default,,0000,0000,0000,,Now, rocketships use chemical reactions
Dialogue: 0,0:21:47.16,0:21:48.79,Default,,0000,0000,0000,,that produce lots of heat.
Dialogue: 0,0:21:49.16,0:21:54.86,Default,,0000,0000,0000,,(Rocket launches)
Dialogue: 0,0:21:54.86,0:21:58.42,Default,,0000,0000,0000,,(Astronaut talks)
Dialogue: 0,0:21:58.42,0:22:00.36,Default,,0000,0000,0000,,Mrs.Mcqule; This space shuttles main engines are
Dialogue: 0,0:22:00.36,0:22:02.18,Default,,0000,0000,0000,,powered by liquid hydrogen and liquid
Dialogue: 0,0:22:02.18,0:22:03.00,Default,,0000,0000,0000,,oxygen.
Dialogue: 0,0:22:04.37,0:22:06.42,Default,,0000,0000,0000,,When the oxygen and hydrogen come
Dialogue: 0,0:22:06.42,0:22:09.51,Default,,0000,0000,0000,,together, they make water vapor and
Dialogue: 0,0:22:09.51,0:22:11.30,Default,,0000,0000,0000,,release the energy the shuttle needs to
Dialogue: 0,0:22:11.30,0:22:12.14,Default,,0000,0000,0000,,take off.
Dialogue: 0,0:22:13.51,0:22:15.60,Default,,0000,0000,0000,,A chemical change has happened
Dialogue: 0,0:22:15.60,0:22:17.58,Default,,0000,0000,0000,,because the two substances hydrogen
Dialogue: 0,0:22:17.58,0:22:19.69,Default,,0000,0000,0000,,and oxygen came together to make a
Dialogue: 0,0:22:19.69,0:22:22.33,Default,,0000,0000,0000,,third new substance, water vapor.
Dialogue: 0,0:22:23.26,0:22:25.33,Default,,0000,0000,0000,,Burning is another chemical change.
Dialogue: 0,0:22:26.30,0:22:28.28,Default,,0000,0000,0000,,When wood burns, it turns into or
Dialogue: 0,0:22:28.28,0:22:29.98,Default,,0000,0000,0000,,becomes something else.
Dialogue: 0,0:22:31.16,0:22:34.95,Default,,0000,0000,0000,,It turns to smoke, heat and ash, it isn't
Dialogue: 0,0:22:34.95,0:22:36.27,Default,,0000,0000,0000,,wood anymore.
Dialogue: 0,0:22:37.03,0:22:39.26,Default,,0000,0000,0000,,That's because during burning, particles
Dialogue: 0,0:22:39.26,0:22:42.01,Default,,0000,0000,0000,,that make up the wood, react with oxygen
Dialogue: 0,0:22:42.01,0:22:43.70,Default,,0000,0000,0000,,in the air and change into other
Dialogue: 0,0:22:43.70,0:22:46.78,Default,,0000,0000,0000,,substances such as; carbon dioxide, ash
Dialogue: 0,0:22:46.78,0:22:48.02,Default,,0000,0000,0000,,and water vapor.
Dialogue: 0,0:22:49.43,0:22:51.99,Default,,0000,0000,0000,,Electricity can also cause chemical changes.
Dialogue: 0,0:22:53.70,0:22:55.75,Default,,0000,0000,0000,,If an electric current is sent through
Dialogue: 0,0:22:55.75,0:22:58.39,Default,,0000,0000,0000,,water, a different kind of change takes
Dialogue: 0,0:22:58.39,0:22:58.71,Default,,0000,0000,0000,,place.
Dialogue: 0,0:22:59.78,0:23:03.03,Default,,0000,0000,0000,,Gases are produced, but the gases are not
Dialogue: 0,0:23:03.03,0:23:06.57,Default,,0000,0000,0000,,water vapor, they are oxygen and hydrogen.
Dialogue: 0,0:23:06.71,0:23:09.01,Default,,0000,0000,0000,,The substances that make up water.
Dialogue: 0,0:23:09.77,0:23:12.35,Default,,0000,0000,0000,,When you eat food, chemical changes
Dialogue: 0,0:23:12.35,0:23:14.17,Default,,0000,0000,0000,,take place as you digest it.
Dialogue: 0,0:23:15.55,0:23:18.26,Default,,0000,0000,0000,,Digestion is a series of complex chemical
Dialogue: 0,0:23:18.26,0:23:20.35,Default,,0000,0000,0000,,changes, each consisting of many
Dialogue: 0,0:23:20.35,0:23:21.59,Default,,0000,0000,0000,,chemical reactions.
Dialogue: 0,0:23:22.88,0:23:24.82,Default,,0000,0000,0000,,When you ate breakfast, your teeth will
Dialogue: 0,0:23:24.82,0:23:26.95,Default,,0000,0000,0000,,make no physical change, breaking
Dialogue: 0,0:23:26.95,0:23:28.81,Default,,0000,0000,0000,,the food into smaller pieces
Dialogue: 0,0:23:30.04,0:23:32.24,Default,,0000,0000,0000,,and your saliva was chemically breaking
Dialogue: 0,0:23:32.24,0:23:35.06,Default,,0000,0000,0000,,down the food molecules into smaller
Dialogue: 0,0:23:35.06,0:23:37.13,Default,,0000,0000,0000,,and smaller particles.
Dialogue: 0,0:23:38.16,0:23:40.49,Default,,0000,0000,0000,,In your stomach acids reacted with the
Dialogue: 0,0:23:40.49,0:23:42.100,Default,,0000,0000,0000,,food to further change and make even
Dialogue: 0,0:23:42.100,0:23:44.39,Default,,0000,0000,0000,,smaller molecules.
Dialogue: 0,0:23:45.67,0:23:48.35,Default,,0000,0000,0000,,Finally, in the intestines, more digestive
Dialogue: 0,0:23:48.35,0:23:51.43,Default,,0000,0000,0000,,juices chemically reacted with what used
Dialogue: 0,0:23:51.43,0:23:53.63,Default,,0000,0000,0000,,to be oatmeal to produce the many
Dialogue: 0,0:23:53.63,0:23:56.31,Default,,0000,0000,0000,,different molecules of sugar, protein, and
Dialogue: 0,0:23:56.31,0:23:59.79,Default,,0000,0000,0000,,minerals your body uses to live and grow.
Dialogue: 0,0:24:00.60,0:24:03.18,Default,,0000,0000,0000,,All during digestion chemical reactions
Dialogue: 0,0:24:03.18,0:24:06.07,Default,,0000,0000,0000,,produce new substances with the atoms
Dialogue: 0,0:24:06.07,0:24:07.40,Default,,0000,0000,0000,,of the old substances.
Dialogue: 0,0:24:09.32,0:24:11.51,Default,,0000,0000,0000,,In general, chemical changes are difficult
Dialogue: 0,0:24:11.51,0:24:12.93,Default,,0000,0000,0000,,to reverse.
Dialogue: 0,0:24:13.13,0:24:14.80,Default,,0000,0000,0000,,(driver slams on brakes)
Dialogue: 0,0:24:14.91,0:24:17.54,Default,,0000,0000,0000,,Turning carbon dioxide gas, water,
Dialogue: 0,0:24:18.05,0:24:21.62,Default,,0000,0000,0000,,and sodium acetate back into baking soda
Dialogue: 0,0:24:21.62,0:24:23.92,Default,,0000,0000,0000,,and vinegar would be difficult.
Dialogue: 0,0:24:25.20,0:24:26.61,Default,,0000,0000,0000,,Kyle: And how about changing that
Dialogue: 0,0:24:26.61,0:24:28.52,Default,,0000,0000,0000,,oatmeal back into what my dad poured
Dialogue: 0,0:24:28.52,0:24:30.05,Default,,0000,0000,0000,,into my bowl this morning.
Dialogue: 0,0:24:30.73,0:24:32.95,Default,,0000,0000,0000,,Amanda: Imagine trying to "unburn" toast
Dialogue: 0,0:24:32.95,0:24:34.80,Default,,0000,0000,0000,,or "unspoil" milk.
Dialogue: 0,0:24:35.77,0:24:37.12,Default,,0000,0000,0000,,(bells ring)
Dialogue: 0,0:24:37.71,0:24:39.16,Default,,0000,0000,0000,,Mrs.Mcqule: We've seen and talked about
Dialogue: 0,0:24:39.16,0:24:41.49,Default,,0000,0000,0000,,physical and chemical changes in matter.
Dialogue: 0,0:24:41.49,0:24:43.49,Default,,0000,0000,0000,,But, sometimes it's hard to tell the
Dialogue: 0,0:24:43.49,0:24:44.15,Default,,0000,0000,0000,,difference.
Dialogue: 0,0:24:45.45,0:24:48.26,Default,,0000,0000,0000,,Physical changes are often easy to reverse
Dialogue: 0,0:24:48.26,0:24:51.64,Default,,0000,0000,0000,,but because matter can be changed in size
Dialogue: 0,0:24:51.80,0:24:55.57,Default,,0000,0000,0000,,and shape by being cut, folded, stretched
Dialogue: 0,0:24:55.57,0:24:58.33,Default,,0000,0000,0000,,,rearranged and crumpled without
Dialogue: 0,0:24:58.33,0:25:00.66,Default,,0000,0000,0000,,changing its original properties
Dialogue: 0,0:25:00.66,0:25:03.32,Default,,0000,0000,0000,,it can look very different
Dialogue: 0,0:25:03.48,0:25:06.14,Default,,0000,0000,0000,,Matter can even be melted, frozen or
Dialogue: 0,0:25:06.14,0:25:07.95,Default,,0000,0000,0000,,heated to change its physical state.
Dialogue: 0,0:25:08.70,0:25:10.47,Default,,0000,0000,0000,,And although it looks different, it is
Dialogue: 0,0:25:10.47,0:25:11.78,Default,,0000,0000,0000,,still the same substance.
Dialogue: 0,0:25:13.36,0:25:14.97,Default,,0000,0000,0000,,Let's look at some examples.
Dialogue: 0,0:25:16.25,0:25:18.65,Default,,0000,0000,0000,,Cherry flavored drink powder is pale pink
Dialogue: 0,0:25:19.00,0:25:20.95,Default,,0000,0000,0000,,but turns bright red when you mix it
Dialogue: 0,0:25:20.95,0:25:23.88,Default,,0000,0000,0000,,with water, but the powder has only
Dialogue: 0,0:25:23.88,0:25:24.59,Default,,0000,0000,0000,,dissolved.
Dialogue: 0,0:25:25.35,0:25:26.83,Default,,0000,0000,0000,,It has gone through a physical change
Dialogue: 0,0:25:27.19,0:25:28.04,Default,,0000,0000,0000,,not a chemical change.
Dialogue: 0,0:25:29.97,0:25:31.59,Default,,0000,0000,0000,,Kyle: Oh, I would've thought that the
Dialogue: 0,0:25:31.59,0:25:33.59,Default,,0000,0000,0000,,color change, was a sign of a chemical
Dialogue: 0,0:25:33.59,0:25:33.94,Default,,0000,0000,0000,,change.
Dialogue: 0,0:25:35.14,0:25:36.87,Default,,0000,0000,0000,,Mrs.Mcqule: When you open a cold soft
Dialogue: 0,0:25:36.87,0:25:39.41,Default,,0000,0000,0000,,drink bubbles are produced but a chemical
Dialogue: 0,0:25:39.41,0:25:41.12,Default,,0000,0000,0000,,reaction is not taken place.
Dialogue: 0,0:25:42.43,0:25:44.62,Default,,0000,0000,0000,,The carbon dioxide has simply.. come
Dialogue: 0,0:25:44.62,0:25:45.25,Default,,0000,0000,0000,,out of solution.
Dialogue: 0,0:25:47.19,0:25:48.41,Default,,0000,0000,0000,,Amanda: Another sign of a chemical
Dialogue: 0,0:25:48.41,0:25:50.14,Default,,0000,0000,0000,,change that didn't plan out.
Dialogue: 0,0:25:50.42,0:25:52.04,Default,,0000,0000,0000,,Mrs.Mcqule: If you rub your hands quickly
Dialogue: 0,0:25:52.04,0:25:53.98,Default,,0000,0000,0000,,back and forth across the surface they
Dialogue: 0,0:25:53.98,0:25:56.06,Default,,0000,0000,0000,,become hot, but the heat is due to the
Dialogue: 0,0:25:56.06,0:25:58.31,Default,,0000,0000,0000,,friction, not a chemical reaction.
Dialogue: 0,0:25:58.31,0:26:00.18,Default,,0000,0000,0000,,Kyle: So a heat change sign doesn't
Dialogue: 0,0:26:00.18,0:26:01.20,Default,,0000,0000,0000,,always work either.
Dialogue: 0,0:26:01.20,0:26:02.47,Default,,0000,0000,0000,,Mrs.Mcqule: Cheer up Kyle.
Dialogue: 0,0:26:02.47,0:26:04.31,Default,,0000,0000,0000,,You know the basics about matter and
Dialogue: 0,0:26:04.31,0:26:05.59,Default,,0000,0000,0000,,if you know that.. you can figure out
Dialogue: 0,0:26:05.59,0:26:06.68,Default,,0000,0000,0000,,those tough spots.
Dialogue: 0,0:26:07.92,0:26:10.38,Default,,0000,0000,0000,,You now know the facts of matter.
Dialogue: 0,0:26:10.74,0:26:11.90,Default,,0000,0000,0000,,Kyle: I think I do.
Dialogue: 0,0:26:12.14,0:26:14.50,Default,,0000,0000,0000,,Mrs.Mcqule: So, tell us first what is
Dialogue: 0,0:26:14.56,0:26:15.30,Default,,0000,0000,0000,,matter.
Dialogue: 0,0:26:16.99,0:26:18.65,Default,,0000,0000,0000,,Kyle: Matter is anything that takes
Dialogue: 0,0:26:18.65,0:26:21.41,Default,,0000,0000,0000,,up space, has mass and has properties
Dialogue: 0,0:26:21.41,0:26:23.61,Default,,0000,0000,0000,,that you can observe and describe.
Dialogue: 0,0:26:25.32,0:26:26.54,Default,,0000,0000,0000,,Mrs.Mcqule: There are two kinds of
Dialogue: 0,0:26:26.54,0:26:28.80,Default,,0000,0000,0000,,properties, physical and chemical.
Dialogue: 0,0:26:29.50,0:26:30.66,Default,,0000,0000,0000,,How are they different?
Dialogue: 0,0:26:31.86,0:26:34.01,Default,,0000,0000,0000,,Kyle: Physical properties can be seen
Dialogue: 0,0:26:34.01,0:26:35.32,Default,,0000,0000,0000,,and measured without changing the
Dialogue: 0,0:26:35.32,0:26:37.20,Default,,0000,0000,0000,,matter into something else.
Dialogue: 0,0:26:37.70,0:26:39.48,Default,,0000,0000,0000,,Amanda: Chemical properties are harder
Dialogue: 0,0:26:39.48,0:26:41.40,Default,,0000,0000,0000,,to see because they describe the
Dialogue: 0,0:26:41.40,0:26:43.96,Default,,0000,0000,0000,,ability of matter to react with other matter
Dialogue: 0,0:26:44.42,0:26:46.48,Default,,0000,0000,0000,,to form some.. different matter.
Dialogue: 0,0:26:47.68,0:26:49.58,Default,,0000,0000,0000,,Mrs.Mcqule: What are the three physical
Dialogue: 0,0:26:49.58,0:26:52.29,Default,,0000,0000,0000,,properties that ALL matter has?
Dialogue: 0,0:26:52.78,0:26:55.06,Default,,0000,0000,0000,,Amanda: There are lots of physical
Dialogue: 0,0:26:55.06,0:26:56.90,Default,,0000,0000,0000,,properties, but three of them belong to
Dialogue: 0,0:26:56.90,0:26:59.82,Default,,0000,0000,0000,,all matter; mass (the amount of matter)
Dialogue: 0,0:26:59.82,0:27:02.68,Default,,0000,0000,0000,,that has volume (how much space it takes
Dialogue: 0,0:27:02.68,0:27:05.48,Default,,0000,0000,0000,,up) and density (mass compared to it's
Dialogue: 0,0:27:05.48,0:27:06.20,Default,,0000,0000,0000,,volume).
Dialogue: 0,0:27:06.78,0:27:08.91,Default,,0000,0000,0000,,Mrs.Mcqule: Hmm.. Do you know any other
Dialogue: 0,0:27:08.91,0:27:09.78,Default,,0000,0000,0000,,properties?
Dialogue: 0,0:27:10.52,0:27:11.58,Default,,0000,0000,0000,,Amanda: Sure.
Dialogue: 0,0:27:11.58,0:27:14.10,Default,,0000,0000,0000,,Most matter that is metallic is shiny,
Dialogue: 0,0:27:14.10,0:27:17.18,Default,,0000,0000,0000,,malleable, strong and a good
Dialogue: 0,0:27:17.18,0:27:20.66,Default,,0000,0000,0000,,conductor of heat, electricity and sound.
Dialogue: 0,0:27:20.80,0:27:23.18,Default,,0000,0000,0000,,Some metals like iron are magnetic.
Dialogue: 0,0:27:23.68,0:27:26.00,Default,,0000,0000,0000,,Most matter that is not metallic is
Dialogue: 0,0:27:26.00,0:27:30.00,Default,,0000,0000,0000,,not shiny, malleable, strong and is not a
Dialogue: 0,0:27:30.00,0:27:31.12,Default,,0000,0000,0000,,good conductor.
Dialogue: 0,0:27:32.53,0:27:34.96,Default,,0000,0000,0000,,Mrs.Mcqule: Now, what about changes?
Dialogue: 0,0:27:35.07,0:27:37.38,Default,,0000,0000,0000,,How can you tell a change is physical
Dialogue: 0,0:27:37.44,0:27:38.24,Default,,0000,0000,0000,,or chemical?
Dialogue: 0,0:27:39.53,0:27:41.29,Default,,0000,0000,0000,,Kyle: Physical changes don't make a
Dialogue: 0,0:27:41.29,0:27:43.53,Default,,0000,0000,0000,,new kind of matter, the matter keeps it's
Dialogue: 0,0:27:43.53,0:27:46.59,Default,,0000,0000,0000,,properties, when one kind of matter is
Dialogue: 0,0:27:46.59,0:27:48.54,Default,,0000,0000,0000,,physically mixed with another kind of
Dialogue: 0,0:27:48.65,0:27:51.19,Default,,0000,0000,0000,,matter.. it might look like something new
Dialogue: 0,0:27:51.19,0:27:53.92,Default,,0000,0000,0000,,but the parts can usually be separated.
Dialogue: 0,0:27:54.90,0:27:56.28,Default,,0000,0000,0000,,Amanda: But when there is a chemical
Dialogue: 0,0:27:56.28,0:27:59.22,Default,,0000,0000,0000,,change, the atoms in the matters that
Dialogue: 0,0:27:59.22,0:28:02.71,Default,,0000,0000,0000,,are mixed up together, hook up in new ways
Dialogue: 0,0:28:02.71,0:28:05.23,Default,,0000,0000,0000,,;they change to form a new kind of matter.
Dialogue: 0,0:28:06.55,0:28:08.01,Default,,0000,0000,0000,,Kyle: Sometimes we can see the signs
Dialogue: 0,0:28:08.01,0:28:09.31,Default,,0000,0000,0000,,of a chemical change.
Dialogue: 0,0:28:09.83,0:28:12.63,Default,,0000,0000,0000,,There might be a color change, sometimes
Dialogue: 0,0:28:12.63,0:28:16.98,Default,,0000,0000,0000,,a gas forms, or energy can be released
Dialogue: 0,0:28:16.98,0:28:18.43,Default,,0000,0000,0000,,as light or heat.
Dialogue: 0,0:28:19.54,0:28:21.68,Default,,0000,0000,0000,,But.. you can't always count on those
Dialogue: 0,0:28:21.68,0:28:22.31,Default,,0000,0000,0000,,signals.
Dialogue: 0,0:28:24.01,0:28:26.03,Default,,0000,0000,0000,,Mrs.Mcqule: So, do you feel a little
Dialogue: 0,0:28:26.03,0:28:28.21,Default,,0000,0000,0000,,better on the properties of matter?
Dialogue: 0,0:28:28.48,0:28:29.89,Default,,0000,0000,0000,,And the changes that matter can go
Dialogue: 0,0:28:29.89,0:28:30.71,Default,,0000,0000,0000,,through?
Dialogue: 0,0:28:30.71,0:28:31.76,Default,,0000,0000,0000,,I know I do.
Dialogue: 0,0:28:31.76,0:28:33.63,Default,,0000,0000,0000,,Kyle: (Jokes around) as a MATTER of FACT
Dialogue: 0,0:28:33.83,0:28:34.33,Default,,0000,0000,0000,,I do.
Dialogue: 0,0:28:35.77,0:28:39.77,Default,,0000,0000,0000,,(background music)
Dialogue: 0,0:28:44.88,0:28:46.40,Default,,0000,0000,0000,,Kyle: Where's Mrs.Bailey?
Dialogue: 0,0:28:46.83,0:28:48.59,Default,,0000,0000,0000,,Woman: Oh, she's out today, I'm
Dialogue: 0,0:28:48.59,0:28:49.13,Default,,0000,0000,0000,,substituting.
Dialogue: 0,0:28:49.88,0:28:50.75,Default,,0000,0000,0000,,You're here early.
Dialogue: 0,0:28:51.23,0:28:53.26,Default,,0000,0000,0000,,Kyle: Yes I'm just.. excited about
Dialogue: 0,0:28:53.26,0:28:54.29,Default,,0000,0000,0000,,the test, I guess.
Dialogue: 0,0:28:54.81,0:28:57.39,Default,,0000,0000,0000,,Woman: Ahh the test.. physical and
Dialogue: 0,0:28:57.39,0:28:59.50,Default,,0000,0000,0000,,chemical changes in matter.
Dialogue: 0,0:29:00.08,0:29:02.86,Default,,0000,0000,0000,,Kyle: Yeah.. I hope I do ok.. (gasps)
Dialogue: 0,0:29:04.24,0:29:05.94,Default,,0000,0000,0000,,Mrs.Mcqule: I think you'll do fine.
Dialogue: 0,0:29:05.94,0:29:06.41,Default,,0000,0000,0000,,Just fine.
Dialogue: 0,0:29:08.65,0:29:09.59,Default,,0000,0000,0000,,(♫ Sings ♫)
Dialogue: 0,0:29:09.59,0:29:12.37,Default,,0000,0000,0000,,Both: M is for metric, conversion to a cup
Dialogue: 0,0:29:12.37,0:29:14.50,Default,,0000,0000,0000,,A is for astronaut cause they go to the
Dialogue: 0,0:29:14.50,0:29:14.93,Default,,0000,0000,0000,,moon.
Dialogue: 0,0:29:16.18,0:29:18.24,Default,,0000,0000,0000,,T is for tattertot cause they are really
Dialogue: 0,0:29:18.24,0:29:18.59,Default,,0000,0000,0000,,good.
Dialogue: 0,0:29:18.97,0:29:20.76,Default,,0000,0000,0000,,T is for toddlers cause they go "room
Dialogue: 0,0:29:20.76,0:29:22.40,Default,,0000,0000,0000,,room room".
Dialogue: 0,0:29:22.74,0:29:24.61,Default,,0000,0000,0000,,E is for elephant cause they take up
Dialogue: 0,0:29:24.61,0:29:25.20,Default,,0000,0000,0000,,much space.
Dialogue: 0,0:29:25.99,0:29:28.63,Default,,0000,0000,0000,,R is for radical cause matter's really cool
Dialogue: 0,0:29:29.32,0:29:33.07,Default,,0000,0000,0000,,M-a-t-t-e-r (shouts) Matter!!
Dialogue: 0,0:29:38.70,0:29:40.33,Default,,0000,0000,0000,,Amanda: For more great videos call