Experiment with baking soda: Baking soda and vinegar rocket!
Is baking soda only for baking? Nope! It works also as a rocket fuel!
Build a rocket itself - without fire and smoke? It is possible! You only need a special socket and two ingredients that you can find at home in the kitchen.
For baking soda and vinegar rocket experiment you will need:
a film canister (or other can with tight fitting lid)
For your rocket you cut out a circle of colored paper about five centimeters in diameter. Which is slightly larger than the lid of the film canister. As a template you can, for example, take a small glass. The paper circle you cut once straight up to the middle and then push it together into a cone. This is the top of your rocket. Glue the hat on the edge with tape firmly so that it does not roll apart. Then you glue it to the canister. The tip should not be glued to the lid, but must be attached to the bottom of the can.
Rocket outdoors only
Warning, your rocket can fly several meters high! It should not be trees or buildings nearby. Choose out a free space as possible with a flat bottom. Choose the location for your experiment so that you can go a few meters to the side after setting up the rocket, because it may splash at startup. Ask an adult to accompany you in the experiment outdoors.
Before you start, you check the lid of the canister. The cans should have a pretty tight lid. Otherwise the experiment does not work! Try a few times to open the lid and close.
Everything ready for baking soda and vinegar rocket?
First, the baking soda comes in the box. Not too much: it should be filled to a maximum of a quarter. Now you pour the vinegar. But only a little - the box should not be too full. While it begins to foam already, quickly close the lid.
When some of the liquid runs out that is not a problem. However, the cover should really be closed firmly! Therefore push it around well. Now again shake well, then put the rocket quickly with the lid down on the floor. Go immediately a few meters aside - and see what happens.
As with a real rocket launch, it may take a moment to your rocket takes off. Up to two or three minutes perhaps - so keep your distance and be patient. And then: Sizzling! The rocket shoots into the air. At the "launch pad" remain the lid and light foam.
Whether your rocket actually goes into the air, depends on a chemical reaction. The everyday ingredients vinegar and baking soda namely have special properties. The baking soda is sodium bicarbonate. Baking soda reacts with the acid, wherein generated carbon dioxide gas (CO2). It forms fine gas bubbles, the "break up" the dough.
Once baking soda and acid (vinegar) come together, the chemical process begins. That you can also see, because it bubbles when you add the vinegar - the gas CO2 is released. The gas needs more space. It will expand and tries to escape from the can. Because the lid is closed firmly it cannot. More and more gas is generated, until the pressure eventually becomes too huge.