Why is it hard work to walk through water?. Why are fish the shape they are?

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Presentation transcript:

Why is it hard work to walk through water?

Why are fish the shape they are?

Why are boats and ships the shape they are?

The boat is moving forwards in this direction. The man is pulling the oar to push the boat forwards. The water feels as if it is pushing you back. This is water resistance.

What would happen if I dropped a ball of Blu-tac into these three containers? Empty WaterWallpaper Paste

Container of water Blu-tac or plasticine Clock or timer I want to create a fair test using this equipment to find out if the shape of the blu-tac makes a difference to the speed at which it falls through the water.

What we are going to measure: What we are going to keep the same: What we are going to change: What we are going to find out: