Information about Make a tea bag rocket with Fizzics Education | Kids Science Experiments

Create a tea bag rocket

Create a tea bag rocket

Follow FizzicsEd 150 Science Experiments:

You will need:

Tea bag that is stapled, a heat pressed seal will not work.

Matches

Non-flammable plate

Adult help.

Tea bag rocket science experiment - materials needed
1 Tea bag rocket science experiment - materials needed

Do this one away from your curtains or anything else flammable. SAFETY FIRST!

2 Tea bag rocket science experiment - ripping the stapled teabag

Cut the top of the bag to remove the staple.

3 Tea bag rocket science experiment - pouring tea leaves out of the bag

Pour the tea leaves out onto the plate and flatten them out.

4 Tea bag rocket science experiment - empty tea bag standing on tea leaves

Open up the tea bag so that it forms a cylinder.

5 Tea bag rocket science experiment - empty tea bag standing on tea leaves

Place the cylinder on top of the ‘tea leaf launch-pad,’ so that it is standing upright.

6 Tea bag rocket science experiment - burning tea bag

WITH THE HELP OF AN ADULT light the top of the cylinder, and step back.

Why Does This Happen?

Hot air rises! You created a convection current of air moving inwards towards the burning tea bag, the air rises up creating a hot air column. The rocket itself only rises once the tea bag became light enough, smoke has weight too! Anyone who has seen a hot air balloon is quite aware of this basic principle.

Do you know why hot air rises though?

Heating air adds more energy to the air molecules. These molecules with extra energy move around very quickly and become more separate from each other than in the cold, lower energy, air. When you separate molecules you effectively have a less dense substance.

A rule within buoyancy means that less dense substances rise above more dense substances. This makes the less dense hot air rise above the cold air. The process keeps working because the cooler surrounding air keeps moving towards the flame and being heated up. This is a simple demonstration of convection currents that exist in thunderstorms and ocean currents.

Put simply, a convection current is the transfer of heat energy by the movement or flow of a substance from one position to another.

Learn more!

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *

This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.