Science experiments in the sandbox. Good for a warm day when it will dry out quickly.
outdoors, sandbox, science, chemistry
What you'll need
Step by step guide
- Half fill a 500ml/16.9 fl oz bottle with water
- Add 4 tablespoons of baking soda
- Add washable paint for color. This may color the sand for a while, but should wash off in time.
- Bury the bottle or surround it with sand to form a volcano
- Pour about a cup of vinegar into the bottle and watch it erupt