Forces and Motion

Bottle Blast

Enrichment Activity for 5-11 11-14

What you need

  • An empty plastic bottle
  • A balloon
  • Scissors
  • Sticky tape
  • A target


  1. Carefully cut the bottom of the bottle off. Cut the neck off the balloon
  2. Stretch the balloon over the bottom of the bottle. Don’t pull it tight
  3. Tape the balloon in place around the bottle
  4. Take aim at your target, pull back the centre of the balloon, hold the bottle steady and release!

Results and Explanation

A vortex of air is pushed out of the bottle by the balloon, ruffling everything it passes. How far will the vortex travel?

IOP DOMAINS Physics CPD programme

Electricity CPD videos

Our new set of videos gives teachers and coaches of physics a preview of the training we offer ahead of this term's live support sessions.

Find out more