How to make a blow rocket
What you will need:
* Two straws (one that fits inside the other)
* Some index cards
* Some Cellotape
* A pair of scissors
1. Tape one end of the large straw shut.
2. Cut the fins out of the index card and tape onto your rocket.
3. Slide the small straw inside the big one and DO NOT TAPE.
4. Blow into the small straw and have fun.