Mister C and the Science Crew build a barometer to measure air pressure.
Related Lessons
Jeremy Jones and Jamil Cary explain how succulents are adapted to dry environments and gives some hot tips on how to grow them at home.
Chris and Gabe Santos explain how you can learn about the Earth's history by learning how to read the rock layers.
Host Michelle Barboza Ramirez asks Chris the tough questions on the relative age of rock layers.