This is a very simple rocket. It uses baking soda and vinegar as fuel, I know sounds lame but its fun and easy. This is a good project for introducing kids to Rocketry ideas such as Newton's "Every action has an equal and opposite reaction" meaning shoot something out the back and it will fly.
Step 1: Materials
1 Film Canister - The kind where the lid snaps in, they are usually translucent white.
1 Plastic Syringe - Ask at your local drugstore for an Oral Syringe.
Baking Soda - Doesn't matter how much.
Vinegar - Again doesn't matter how much.
Paper - Plain printer paper, or construction paper if you like colour.
Tape - Regular scotch tape.
Scissors - They only need to be able to cut paper.