Discover air pressure like never before with just a balloon and a bottle.This is an excellent teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe.
• Comes with a Teacher’s Guide
Includes:
• Glass bottle
• 2 balloons
• Rubber stopper
• Grades 5 and up
• 20 cm (5″) Dia.
Item 6080-40
In Stock