This is one of our favourite outdoor experiments to do while the weather allows! It provides endless hours of bubbly fun and there’s plenty of science going on too!
You will need:
- Empty washing up bottle or disposable drinks bottle
- Old sock
- Elastic bands (optional)
- Liquid soap
- Cut off the bottom quarter of your empty disposable bottle.
- Cover the cut end of the bottle with a sock, stretching the sock out and pulling it over the end so its tight and makes a flat surface on the bottom. Pull the sock all the way up and then fold it back on itself to reveal the bottle top. Secure with an elastic band if needed.
- To a shallow dish of water, add a squirt of washing up liquid to make a soap solution.
- Dip the sock end into the soapy solution and blow through the mouth piece of the bottle. Watch the bubble snake appear.
Important: Be careful not to breath in the soapy solution. Always blow out!
You could try:
- What happens if you blow softly?
- What happens if you blow hard?
- How long can you make your snake?
- Does the liquid soap used make a difference to the bubble snake length or quality?
- Try adding some food colouring to the bubble mixture to make your snakes colourful too.