106:. The film canister rocket has a buildup of gas that wants to come out of the weakest spot making all the gas come out at once through the hole at the bottom. The gas comes out from the underside and pushes the rocket up. After it gets pushed up, air resistance slows it down and gravity pulls it down to earth. The film canister accelerates quickly because it has very little mass. The film canister rocket uses a solid fuel mixed with a liquid fuel to create a gas that escapes out of the bottom. The gas is carbon dioxide (CO
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Various experiments and lessons can center around the use of a bicarbonate rocket. For example, students are sometimes asked to experiment with the amounts of water and Alka-Seltzer to find the combination which propels the rocket the greatest distance. Alternatively they may derive equations to
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is great enough to cause the body of the canister to be launched into the air with a popping sound. The canister may be embellished with paper fins to resemble more closely a real rocket.
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161:"We Have Lift Off! Integrating Space Science and Mathematics in Elementary Classrooms"
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calculate the speed and velocity of the rocket from the distance it travels.
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O is mixed with an effervescent tablet, it produces the gas CO
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In the experiment, a film canister is filled with water, an
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O), and the solid is an effervescent tablet. When the H
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57:. Sodium bicarbonate rockets are often used in
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