The moon is round like a ball. It is smaller than the earth. Like the earth the moon shines in space. Sunlight hits the moon and makes it shine. The moon is like the earth in another way. It does not stand still. Both the moon and the earth are always moving through space. The moon keeps traveling round the earth. That is why we do not always see the moon in the same place. That also why the moon does not always look the same to us.Sometimes the moon is overhead during the day. At night, the sky is dark. Then the moon looks bright. Sometimes the moon looks as round as a ball.This is called a full moon. Sometimes you see only a small part of the moon. Sometimes, even the sky is clear, you cannot see the moon at at all. This is called the new moon. The next night you will be able to see a very little bit of the moon. We call the moon a satellite of the earth. The earth has some manmade satellites, also. The satellites are shot off from the earth in rocket. When they are high enough, they start to travel round the earth. Man made satellite can also travel round the moon or the sun. If nothing stop them,they can go on traveling forever.