3. Steps
1. Get a one L bottle
2. Put vinegar into the bottle so the bottle is filled up
about one inch
3. Put some baking soda in the middle of a sheet of
plastic wrap
4. Pull all the corners together and stick it in the bottle
5. Close the bottle all the way
6. Shake the bottle for at least 4-5 seconds
7. Loosen cap and Throw down onto pavement
8. Watch the bottle fly up high in the sky!