CO2 To the Rescue Lab Activity kit, to invent a small device that could rescue a cell phone that accidentally falls into water, Students conduct a pair of chemical reactions to determine which of two acids react with baking soda to produce the most CO2 gas
Harbottle, teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe, balloon and a bottle, Measures 5In in diameter. Grades 5 and up