Surface of the Moon Flashcard

Front

Objects that pulverized and crushed the moon's surface over billions of years left a dusty surface known as ____________.

Back

Regolith is the layer of loose, fragmented material covering solid bedrock, formed by the impact of meteoroids.

Front

What are lunar highlands and maria?

Back

Highlands and Maria are different types of terrains on the moon. Highlands are elevated regions, while Maria are large, dark, basaltic plains.

Front

Maria formed from which of the following?

Back

Maria formed from basaltic lava that flowed out during volcanic activity on the Moon.

Front

Closest point in the Moon’s orbit to Earth is called ____________.

Back

Perigee is the point in the orbit of the Moon where it is closest to Earth.

Front

What is the term for the dark, flat plains on the moon's surface?

Back

Mare or Maria refers to the large, dark, basaltic plains on the Moon's surface.

Front

What are impact craters?

Back

Impact craters are depressions on the Moon's surface formed by the collision of meteoroids.

Front

What is the significance of the Moon's regolith?

Back

Regolith is important as it provides insights into the Moon's geological history and is a potential resource for future lunar exploration.

Front

How do lunar highlands differ from maria?

Back

Lunar highlands are rugged and heavily cratered, while maria are smoother and less cratered, formed by ancient volcanic activity.

Front

What is the composition of lunar maria?

Back

Lunar maria are primarily composed of basalt, a type of volcanic rock.

Front

What causes the Moon's phases?

Back

The Moon's phases are caused by the relative positions of the Moon, Earth, and Sun, affecting how much of the Moon's surface is illuminated.