Mai Lesson

Sink or Float Challenge!

Science · 30 min · Ages 4-5 · Pre-K/K · Your child and Mai

This lesson challenges young learners to predict and test whether different everyday objects will sink or float in water. It introduces basic concepts of density and buoyancy through hands-on experimentation. Children will observe, compare, and describe their findings.

What your child gets out of it

• Predict whether common objects will sink or float.
• Test predictions by observing objects in water.
• Describe observations about objects that sink or float.

What you need

• Water
• Large Bowl Or Tub — Choose one that's wide enough for objects to float freely. (or Plastic Container, Bucket)
• Small Objects — Gather 5-7 varied objects from around the house, like a coin, leaf, sponge, or small toy.
• Bowl/bin

How it runs

1. Introduction · 5 min
2. Explore & Plan · 8 min
3. Discussion · 6 min
4. Activity · 9 min
5. Summary · 2 min