A metal boat floats, but a small coin sinks. Mystery? Be the detective!
Your laboratory
A large basin of water, 10 objects: bottle cap, coin, key, apple, ball, eraser, pebble, sponge, spoon, piece of wood.
The scientist's protocol
1️⃣ Predict: float or sink?
2️⃣ Gently lower the object into the water.
3️⃣ Mark ✅ or ❌ in a table.
4️⃣ Compare with your predictions.
The secret
It's not size that matters, but material and shape. An object that is light for its size floats. A ball of modeling clay sinks, but the same clay shaped like a boat floats!
⛵ Challenge: build an aluminum boat that can carry as many coins as possible. See our packs for more challenges.
🎮 Want to play?
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