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Maheswari

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Day and night

What is day?

The period of time when a place on Earth is facing the Sun and has daylight.


Key Points:

  1. Happens when a part of the Earth faces the Sun.

  2. The sky is bright because of sunlight.

  3. Plants and animals are usually active during the day.


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Energy is conserved

Definition:

Energy cannot be created or destroyed it can only be changed from one form to another.


Key points:

  • Energy cannot be created.

  • Energy cannot be destroyed.

  • Energy can change from one form to another.


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Energy changing form

Definition.

Energy changing form is when energy transfers from one type to another without being created or destroyed.


Key points.

  • Energy can change from one form to another.

  • Energy is never created or destroyed.

  • This is called energy transfer.


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Energy on the move

Definition.

Energy transfer is how energy moves from one object or place to another.


Key Points.

  • Energy moves from one place to another this is called energy transfer.

  • Energy can change form while moving.

  • Energy is never lost, just transferred or transformed.


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Ima

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