As the Manager of Program Development, I include them in Adler’s camp activity list every year and they make frequent appearances at home with my daughter too. When I’m looking to combine a little bit of learning with a lot of fun, stomp rockets are my go-to. If you want to watch a mind bending video that is connected to the Film Canister Rocket activity watch Alka-Seltzer added to Spherical Water Drop in Microgravity.Header Image: Make your own stomp rocket and stomp rocket launcher with supplies from around your house and launch it outside! In the case of our shuttle rocket the fuel and oxidizer burn, are put under intense pressure and are released not by the popping off of a lid but through a tiny hole on the bottom of the combustion chamber called a nozzle. It is exactly like our Film Canister Rocket, the carbon dioxide builds up and puts intense pressure on the canister so the lid pops off. The fuel and oxidizer are allowed to combine within the combustion chamber and as the burn they turn into a gas (gases take up about 1,000 times more space than a liquid) this causes the intense pressure. You are right, the fuel and oxidizer are only in these liquid states when they are in the holding tanks and they can only stay in this liquid state at extremely low temperatures. You may be saying to yourself, “I thought they just said that the fuel is in the gaseous state not liquid?”. The fuel used in the rockets like the ones that help the space shuttles enter space use liquid hydrogen as the fuel and liquid oxygen as the oxidizer. (Can you think of a reason why this might be important? Write your answer in the comment box below!) The fuel, in a gaseous state, is pressurized because this forces it out the end of the rocket just like our Film Canister Rocket! However, there are a few more parts to an actual rocket. The oxidizer is something that allows the fuel to burn without using outside air. These rockets use a pressurized fuel and an oxidizer. Quite simply, rockets are how NASA can get all those amazing missions off the ground. You already know what happens when you combine this chemical reaction with a film canister, when it pops, it goes up! (Has this reminded anyone of another great science experiment that uses a weak acid and baking soda? That’s right, baking soda and vinegar produce the same reaction when mixed together. Sodium bicarbonate is, well, basically baking soda. Citric acid is a weak acid and is in the juice of most citrus fruits like lemons or limes. When you mix these effervescing tablets with water, a chemical reaction takes place between the citric acid and sodium bicarbonate contained in the tablet and the water. This chemical reaction creates many, many bubbles of carbon dioxide gas. In fact, the company that makes Alka-Seltzer is so proud of the fact that it can be used in science experiments they have a whole page on their website dedicated to it! Not to rain on the Alka-Seltzer science parade but, just between us, the generic brands also work perfectly well for this activity and it saves some moolah! What is happening inside that film canister?įirst of all, we all know that the most common effervescing tablet used in a film canister rocket is Alka-Seltzer. KeyBank Discovery Theater Special Features.
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