Why does cow poo make plants grow?

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Cow poo, cow pats, cow pies or cow dung – whatever you want to call the sloppy stuff that comes out of a cow’s bottom – has been used for hundreds of years to help plants grow. The farmer who lives near us puts it on his crops each year and you know exactly when he’s done it because there’s a stink in the air for days!

But exactly what is it that’s so special about cow poo that makes it good for plants?

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Why are stars white?

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My 5-year-old is fascinated by the night sky and loves to look at the moon and stars. She wants to buy a telescope so that she can see all the stars in space! But she wonders why are all the stars white?

Well, they’re not but you can’t see their colours by looking at them with just your eyes. They are so very far away from Earth that you need to use a telescope to study them in more detail.

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