Chapter 28-Sun Earth Moon System Flashcards
1
Q
Highlands
A
Light colored, mountainous, heavily cratered areas of the moon
2
Q
Maria/Mare
A
Dark colored, basaltic, smooth plain on the moon; formed from lava welling up and filling basins
3
Q
Impact craters
A
Moon crater formed when space material impacts on the lunar surface
4
Q
Ejecta
A
Material that falls back to the lunar surface after being blasted out by a space object
5
Q
Rays
A
Long trail of ejecta that radiates outward from a moon crater
6
Q
Regolith
A
Layer of loose, ground-up, rock on the surface of the moon
7
Q
Ecliptic
A
Plane that contains Earth’s orbit around the sun
8
Q
Perigee
A
Closest point in the moon’s elliptical orbit to earth
9
Q
Apogee
A
Farthest point in the moon’s elliptical orbit to earth
