Vaixells de motor
Fizz, fizz, zoom! This baking soda #DIY experiment boat is easy to build and fun to race. What’s going on? If you mix baking soda and vinegar, you get a chemical reaction which creates carbon dioxide gas. When this happens inside your bottle boat, the gas only has one way to escape, and that’s out the straw. The gas flying down the straw and out the back pushes the boat forwards. This is the same principle used by airplane jet engines.