The sun,the moon and the earth 的英语小作文 不要太多!

We live on the earth , and we also hear about the sun and the moon. But do we understand them? Okay, let me introduce them.
The sun is a fixed star. It is very, very hot and it gives us heat and light. Nine planets move around it. The earth is one of them. We know the earth is only planet with life on it. The earth has air and water, and it gets heat and light from the sun. Life needs air, water, heat and light.
The earth moves around the sun. It turns around itself, too. It turns from west to east.
The earth has a satellite, which we call it the moon. The moon moves around the earth. It does not have any air or water, so there is no life there.
The earth is valuable, we have to protect it. Let us remember it: We have only one earth.