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Sink or Float?

🧠 Think⏱ Discovery Play · 15 minAges 3–4, 4–6, 6–8

You need

  • bowls (1 big)
  • water
  • a towel
  • spoons
  • small toys, bigger than a cotton reel (3)

Steps

  1. 1. Fill the big bowl half full of water. Put a towel under it.
  2. 2. Pick up an object. Guess: will it sink or float?
  3. 3. Drop it in! Were you right?
  4. 4. Make two piles on the towel: sinkers and floaters.

⚠ Safety · Stay within arm's reach

Never leave a child alone with water, even a bowl. Use cold water. Empty the bowl the moment you finish.

Stop if:

  • You need to step away — empty the bowl first
  • Water is on the floor

Easier

Just drop things in and watch.

Harder

Can you make a sinker float? Try it on a plastic lid.

Only 5 minutes?

Test three objects.

Why it matters: Guessing, then testing, is how scientists think.

Clean-up: Empty the bowl at once. Dry the toys on the towel.

This activity is a draft. It will be reviewed by a child-development professional before launch. Use your own judgement about what is safe for your child.

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