Here's a fun and easy science craft. Make an air cannon from a plastic drink bottle and a balloon. This craft comes from a Japanese site. You can shoot down paper targets. Visit the site for a full picture tutorial.
Materials:
- 350 ml, 12 oz. plastic drink bottle
- duct tape or carpet tape
- scissors
- an exacto knife or box cutter
- a balloon
Directions:
- Make a starter slit in the plastic bottle about an inch from the bottom.
- Now use scissors to cut the bottom off the bottle. Be careful there are no jagged edges.
- Cut the balloon about 1 to 2 inches from the opening.
- Stretch the balloon to completely cover the bottom of the bottle. This is the diaphragm of the air cannon.
- Use duct tape to secure the balloon to the bottle.
- Pull back on the end of the balloon and let go to fire the air cannon.
You ca get fancy by ttaching the bottle to a cardboard tube for a handle and make a gun. Don't forget to decorate.
Pet bottle air cannon
Pet bottle air cannon
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