Show:
VOCAB.
CH. 28 SEC.
Bonus
100
What is rotation?
The spin of a body on it's axis
100
What is does a maria on the suface of the moon looks like, and how they came to be known as the Maria?
Marias looks like dark patches on the moon. They're smooth and reflect less light than the lighter patches. Mare means sea, and an astronomer thought they looked like Earth's seas so he called them Marias.
200
What is a Revolution?
The motion of a body the travels around another body in space.
200
What's the difference between thickness of the moon's crust on the nearest side with the thickness of the crust on the far side?
The crust on the far side is thicker that the crust on the near side.
300
What is a moon?
A natural satellite that revolves a planet.
300
How would the suface of the moon be different today if the meteorites had continued to hit it at the same rate as they did 3 billion years ago?
It would have more craters and debris would be thicker.
400
What is a Meteorite?
A meteor that strikes Earth's suface.
400
How and when did the Maria form?
It formed 3 billon years ago when lava slowly filled the basins that were created by impacts of massive asteroids
500
What are moon phases?A phase that indicates the fraction of the moon's disk that is illuminated
A phase that indicates the fraction of the moon's disk that is illuminated
500
What are breccias and how did they form on the moon?
Breccias formed when metecites struck the moon and fragments of rock formed the highlands of maria.
500
Summarize how scientist think th moon was formed.
They think a Mars- sized object hit Earth and blasted part of it's mantle into space and the remining debris joined to form th moon.