I’m not too prudish to say it: kids think farting in the bathtub is hilarious. Why? Because it makes bubbles! We like to turn a fascinations with bubbles into an easy and free bath time science project.
- Poke a hole in the bottom of a plastic container. We reused a large yogurt container.
- Covering the hole completely with your finger, submerge the container open side down until it rests on the bottom of the tub.
- Firmly hold the container down, take your finger off the hole and watch the bubbles escape.
Discussion and Extension Activities:
- Chat with your kid about how air escapes. It rises because it is lighter than the water.
- You can also demonstrate suction by lifting the container slowly out of the water. Show kids how to feel the pull of the suction-action as you lift the container from the bottom of the tub.
- We had lots of fun watching whose container would make the most bubbles, whose lasted longer, etc. Compare different size containers and test how many bubbles each size makes, the strength of the suction and so forth.
This was so much fun for Kiddo and he was pretty disappointed when it was time to get out of the bath. But really, the water was stone cold by then!