SURFACE OF THE MOON
• As we observe the moon with naked eye, we will probably notice that some areas are darker than others.
• This is because; long ago there were many comets and asteroids, which frequently hit the worlds of our Solar System.
• Every once in a while, a very large object would crash into the Moon hard enough to break through its surface rock causing lava to ooze out.
Figure 16: Moon
• The lighter areas on the surface of the moon are where objects have crashed into the surface recently.
• In photographs of the Moon, we can see large scars called craters.
• Craters- are deep holes that have been made when solid bodies called meteorites crashed into the moon's surface.
Figure 17: Moon’s craters
• Lava that flowed from these craters covered the earlier craters and made them look smooth and dark.
• All this happened billions of years ago.
• Things have not changed since then because there is no air or water on the moon to cause weathering.