The Pressure's Off
Students investigate air pressure with four hands-on activities. They observe experiments by viewing Take a Look 2 #21.
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Density and Pressure of a Hot Air Balloon
Using a dry cleaner bag and a blow dryer, create a hot air balloon! The materials list suggests obtaining one dry cleaner bag per student, but since this is probably inconvenient, consider doing this as a demonstration during a lesson on...
6th - 8th Science