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Movement in the Solar System. Can you explain ? 1.Why do day and night happen on Earth ? 2.What is a year ? 3.What is a month ?

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Presentation on theme: "Movement in the Solar System. Can you explain ? 1.Why do day and night happen on Earth ? 2.What is a year ? 3.What is a month ?"— Presentation transcript:

1 Movement in the Solar System

2 Can you explain ? 1.Why do day and night happen on Earth ? 2.What is a year ? 3.What is a month ?

3 Why do day and night happen ? The Earth continually spins around on its axis. On the side which is facing the sun it is day- time. On the side which is facing away from the sun it is night-time. daynight Earths axis

4 What is a year ? A year is the time it takes for the Earth to orbit the sun once. This is 365 and ¼ days. We add an extra day every fourth year to deal with the ¼ days. This is a leap year.

5 What is a month ? There are a number of meanings for the word month. Roughly, it is the time taken for the moon to orbit the Earth once ( days ).


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