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Density & Floating

Sink it or float it… but can you explain WHY?

Hands-on science kids actually DO — not just watch

Sink it or float it… but can you explain WHY?

Try These Crazy Experiments

clear bottle with oil and water layers, mini rubber duck on top, wave mid-motion — Ocean Energy in a Bottle wave energy transfer experiment for kids
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Ocean Energy in a Bottle

Can you capture wave energy inside a bottle?

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5-12 yrs

Stage 2-3

Easy

Tip a bottle and watch a wave travel from one end to the other. Now ask yourself where the water went. Not the wave — the actual water. It's a question most people have never thought to ask. And the tiny duck floating inside has the answer.

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sink or float science experiment with objects in water
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Sink or Float?

Before you test it — can you predict which objects will sink?

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7-12 yrs

Stage 2-3

Medium

So why does one sink and the other float?

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peeled orange sinking and unpeeled orange floating in same glass of water — The Life Jacket average density experiment for kids
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The Life Jacket

Can you engineer a jacket that keeps anything afloat?

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5-12 yrs

Stage 1-3

Easy

Pick up an orange. Feel how solid and heavy it is. Now think about what happens when you drop something heavy into water. Make your prediction — and then peel it. Because something changes.

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egg sinking in one glass and floating in another side by side — The Imposter density science experiment for kids
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The Imposter

Two liquids look identical — can you tell which is which?

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5-12 yrs

Stage 1-3

Easy

Two glasses of water. Same size. Same temperature. Same colour. Same everything — or so it seems. Your job is to catch the imposter.

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coke vs diet coke density experiment floating and sinking cans
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Coke Density

Can you predict which can of Coke will sink and which will float?

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7-12 yrs

Stage 1-3

Easy

Think all soft drinks are the same?
One of these cans will sink like a rock…
and the other will float like magic!

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