Sink or Float Experiment (Part 3)

What You'll Learn

Objects float or sink depending on their density—how heavy they are for their size.

Step 1 — Read

Talk about what you already know about Matter.

Step 2 — Do

Stretch, bend, and tear different materials (paper, foil, rubber band). Record what happens to each.

Step 3 — Observe

Compare what happened to what you predicted.

Step 4 — Record

Tell the class one thing you learned today.

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Why does a heavy rock sink in water?