Did you know that in Vancouver, Washington the USGS operates the Volcano Observatory that monitors volcanoes 24 hours a day 7 days a week. Step inside the observatory and learn when the next "big one" will happen.

Be sure to check out the full episode of STEM in 30 on volcanoes and earthquakes: https://youtu.be/VkT7zKNHPm8

For more FREE teacher resources from the Smithsonian’s National Air and Space Museum visit STEM in 30, the museum's Emmy nominated TV show for middle school students: https://airandspace.si.edu/stem-30