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Welcome back, Cuarto. Today we're going to go over Unit 5 of Natural Sciences, Forces.

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Objectives. In this unit, you will learn about push and pull forces, magnetism, gravity and weight, the effects of upthrust.

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1. A juicer applies a force to squeeze the juice out of an orange.

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2. A footballer applies a force to move the ball and a goalkeeper applies a force to stop it.

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3. An invisible force attracts the paperclips to the paperclip holder.

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4. A force can change the shape of an object or even break it.

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5. A force stops the boat from sinking. Also, the man and the boy apply a force to move the boat.

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6. An invisible force pulls the man towards the earth.