Sink Or Float Laboratory Science Activity for Kids

Explore a simple science question with a few familiar household objects: which ones stay on the surface, and which ones sink? Invite children to make predictions before each test and talk about unexpected results. Drawing a record of the experiment adds a creative ending to the investigation.

Let’s make it happen

1. Put a shallow bowl on a towel; an adult stays within reach.
2. Predict which objects will float.
3. Test one at a time and draw your results. Empty the bowl afterwards.

Grown-up note: Supervise play, check materials for age suitability and keep small parts away from younger children. Adapt the activity to your child’s abilities.