You will need
- A plastic cup- Large balloon- Pair of scissors- Brussels sprouts- Some help from an adult!
Carefully cut a hole in the bottom of the cup using a pair of scissors
Trim down the balloon so you can stretch it out. This works best with big balloons.
Stretch the balloon over the bottom of the cup
and pull it down so it's tight
Step 4: Fire!
To launch a sprout, just drop it into the cup and make sure it sits in the balloon part
Now pull the balloon back and let go!