Have you ever wondered how rockets work? Try this experiment to learn more about how rockets go up in the sky!
What you will need:
A long string
What to do:
Tie one end of your string to the back of one of your chairs.
Then take the other end of the string and put it through your straw. You can tie the other end of the string around the back of your other chair now.
Blow up a balloon (don’t tie the end) and attach it to the middle of the straw using two pieces of tape. Then holding the end of the balloon closed pull it to one of the chairs. Make sure the end of the balloon is facing the chair that it is closest to.
Then let go of the balloon and watch your rocket go!
What does this show us?
This balloon rocket shows us an example of action and reaction. Action and reaction means to make something move forward we have to have a force work in the other direction. When we let go of the balloon we cause air to escape from the opening. This escaping air creates a force that pushes the balloon in the opposite direction making it move across the yarn!
Real rockets work the same way, but it is an engine that creates the force that pushes the rocket up, instead of air like in the balloon. The engine in rockets create an explosion which comes out of the bottom of the rocket shooting it upwards.
For more information and pictures please visit https://discoverexplorelearn.com/balloon-rockets/