On Tuesday we went to Science Alive. I learnt that it takes one year for the Earth to orbit the Sun.
I also learnt how to make a Galaxy. You need:
Black paper
chalk
sieve
glue
You put a design with glue on the paper. Then you get the chalk and sieve and rub the chalk onto
the glue. Them you shake the chalk into a rubbish bin and you have your own Galaxy.
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