PURPOSE:
The purpose of this experiment is to design a paper rocket that is propelled by Alka-Seltzer and water to demonstrate a chemical reaction.
BACKGROUND:
The paper rocket in this activity is propelled according to the principle stated in Isaac Newton's Third Law of Motion. "For every action there is an opposite and equal reaction. In the case, we can interpret the law to mean that if there is a force applied between two things, each thing feels the same sized force, but applied in opposite directions. In our rocket, gas pressure builds inside the film canister due to the mixing of Alka-Seltzer and water (chemical reaction) and the gas applies a force to both the canister and the lid. Eventually, enough pressure builds to blow apart the canister and lid; the canister and lid/gas/water are pushed apart in opposite directions.
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