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What are those dark spots? That's lava from a very long time ago!
Craters are big scars formed when the moon was hit by asteroids a long time ago.
Asteroids are space rocks. Some are large and some are small. Which ones would cause the biggest crater?
This is a close up of the moon's surface. It's gray and rocky with a powdery dust. There is no wind, air or liquid water on the moon, so we could not live there.
This is what Earth looks like if you were up on the Moon looking down. The Earth is a lot bigger than the moon.
The moon does not have as much gravity, so you would only weigh about 1/6 of your Earth weight if you visited the moon. How much do you weigh on Earth?
This astronaut is standing by a huge crater on the moon.
The very first man on the moon was an American man named Neil Armstrong. We'll learn more about him later this week!
Here are some different sized craters. How big do you think the rocks were that made them?
An astronaut with the moon buggy is shown here. Notice the rocks and the powdery surface with all of the footprints. The footprints never leave because the moon has no wind or atmosphere. The footprints of the first man on the moon, over 40 years ago, are still there.
This is another crater on the moon. Deep down in some craters, scientists have found a little bit of frozen water.