Enrichment Activity for 5-11 11-14
- Level Elementary
What you need
- A drinking straw - cut in half
- A balloon
- A long piece of string
- A clothes peg
- Sticky tape
- Blow up the balloon and peg the neck to keep the air in
- Thread the straw with the string and then tape it lengthways to the balloon
- Tie the string across the room
- Now unclip the peg!
Results and Explanation
As the air rushes out it pushes back on the balloon propelling it forward.