Here is a fun and easy project for kids to learn about rockets and how they work. You can teach kids five and up how to build this project they will enjoy watching as the rocket launch and so will you . This experiment will show you how build up in pressure can launch a rocket.As we pump air through the water the pressure inside the bottle builds up until the force of the air pushing on the water is enough to push the cork out of the end of the bottle. The water rushes out of the bottle in one direction whilst the bottle pushes back in the other. This results in the bottle shooting upwards. Here is what you will need an empty plastic bottle cardboard made into a cone and 4 fins a cork a pump with a needle adapter water Instructions Push the needle adapter of the pump through the cork, it needs to go all the way through so you might have to trim the cork a little bit. Decorate the bottle with the cone and fins. Fill t...