What is the moon made of?

The moon is a rocky satellite, and is made of similar material to the earth. It has an outer layer, or mantle, of rock, and a core that is probably made of mostly iron. Unlike the earth’s liquid mantle, the interior of the moon is cool and the solid .there is little or no volcanic activity on the moon. However while it was cooling, early its life floods and streams of lava ran across the moon’s surface. The moon also has mountain ranges, many of which are the remains of impact craters and volcanoes that were active when the moon was still hot. There are some huge valleys called rilles, which can be hundred of miles in length and look a little like- river beds.