Lesson 2: Motion - Alka-Seltzer Rocket
IDEA: To design a paper rocket propelled by Alka-Seltzer and water to demonstrate Newton's third law of motion.
Carbon dioxide gas builds up so much pressure that the lid is forcibly launched. With an Alka-Seltzer tablet, the CO2 is produced as a result of a chemical reaction. With the soda, the CO2 is produced as a result of vigorous shaking. This provides a good contrast between a physical and chemical change.
1. Design and launch a rocket powered by two, three or more film canisters.
2. Design and launch a rocket that launches in two stages.