Trading meteorites
Moon samples can even come from this side of the moon.
What is the far side?
Marias on the moon suggest this about the moon.
What are past active volcanoes?
Earth's magnetic field is constantly protecting us from harmful this type of wind or cosmic ray particles.
What are solar winds?
Moonquakes can last this long.
How long is 10 minutes?
Measuring the albedo on earth can help us track this based on how much sunlight the earth absorbs.
What is climate changes?
These meteorites then hit this planet, also known as the third rock.
What is earth?
Plate tectonics and hot spots continuously help Earth spout rock, this, and gases from its surface, thereby renewing earth's surface.
What is ash?
One thing that makes this molten ocean of metal move is this.
What is the moon's gravity?
How do moonquakes tell us how liquid water is important?
They tell us that liquid water absorbs the vibrations from earthquakes so we don't feel as much.
Sunlight bouncing off the earth is also known as this.
What is earthshine?
Scientists believe meteorites from the moon are ejected by this.
What is Meteors hitting the surface.
Scientists believe this is why the earth looks so much younger than the moon.
What are volcanoes?
This is earth's shield.
What is the magnetic field?
Earthquakes only usually last this long.
What is 30 seconds?
Every planet or moon in our solar system can be measured by its this, or how much it reflects light.
What is its albedo?