The sun, moon and Earth

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Do we see different stars in the sky each night?
Yes - because earth orbits teh sun , so we change the direction we
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How long is a solar day and why is it different to sidereal day?
24 hours - because the earth orbits teh sun whil also spinning on its axis so takes an extra 4 mins to return to same position
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What is a solar eclipse?
When moon comes between the sun and earth
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What causes the phases of the moon?
The only reason we see the moon is because it reflects light from the sun, the part of the moon see is facing the sun and the rest is in the shadow, as the moon orbits earth the amount of dark and lit up surfaces change, these are the phases of the moon.
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Why don't eclipses happen very often?
It is very rare that the sun moon and earth line up perfectly to block out all light because earth has a slight tilt
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What is a lunar eclipse?
When moon goes into earths shadow
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Other cards in this set

Card 2

Front

How long is a solar day and why is it different to sidereal day?

Back

24 hours - because the earth orbits teh sun whil also spinning on its axis so takes an extra 4 mins to return to same position

Card 3

Front

What is a solar eclipse?

Back

Preview of the front of card 3

Card 4

Front

What causes the phases of the moon?

Back

Preview of the front of card 4

Card 5

Front

Why don't eclipses happen very often?

Back

Preview of the front of card 5
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Comments

Lucy

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the moon has a 5 degree tilt in relation to the earth too!

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