Our solar system

This task is about the moon, the sun, Earth and Mars. 
Here is a picture of the moon. 
 

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a)  What is the moon?
     Write all that you know about the moon.

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b)  Imagine you have arrived on the moon.
     What would you notice that is different from being on planet Earth

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c)  How is it that we can see the moon with our eyes?

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d)  Why do you think that the moon appears to change its shape?
Here is a picture of planet Earth and a picture of planet Mars.
Scientists tell us that people like us cannot live on Mars but we know that we can live on planet Earth.
 the Earth  Mars  

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e)  Why can't people live on planet Mars? Write as many reasons as you can think of.

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f)  Why are we able to live on planet Earth? Write as many reasons as you can think of.
Here is a picture of the sun.
     the sun

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g)  The Sun is not a planet. What is the Sun?

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h)  How is the Sun different from planet Earth?