Earth is the planet we live on. It is mostly made of water. Our planet is the only Planet that has life on it. The average surface temeture is 15 c. The diameter of Earth is 7,898 miles. and the size is 3,959 in total. It takes 23 hours and 56 min to make a full turn around the moon. The average distance is 92.96 miles away from the moon. Our planets name comes from a English + German name that means ground.