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The Effervescent Launcher is a bubbly, high-flying lab that engages students in the process of discovery as it reveals the importance of using the scientific method, record keeping, and controlling variables when conducting any experiment. An angle is selected, an effervescent tablet and water are placed in a 35mm film canister, which is then loaded into the PVC launcher. The CO2 gas generated blasts the canister’s top into the sky like a rocket! Change variables, hypothesize, and repeat. Developed by Kenneth W. Carlson. Includes instructions. Required but not included: 35mm film canisters. Grades 6–8. Size: 20.3 x 10.2 x 33 cm.
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