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Rocket Launcher Science Experiment

Materials

Cork with streamers attached with a tack
1 quart pop bottle
1/2 cup water
1/2 cup vinegar
1 tsp baking soda
4 x 4 inch paper towel

Directions

Add the water and vinegar to the bottle

Place the baking soda in the center of the paper towel
and twist ends to keep the baking soda from falling out

Outside in the yard, drop the paper towel with the baking
soda into the bottle and put the cork on tight

Stand back away from the cork and bottle and watch as
the baking soda reacts with the vinegar and shoots off
the cork!

What's Going On?

The baking soda mixes with the vinegar to form carbon dioxide gas. As the gas forms, pressure builds up inside the bottle and eventually forces the cork to pop.