Moon

Question 1

What’s the diameter of the Moon?

Answer 1

3 474 km

Question 2

What is the rotational and orbital period of the Moon?

Answer 2

27.3 days (meaning we only ever see one side)

Question 3

What’s the length of the lunar cycle?

Answer 3

29.5 days, 2 days longer due to the sun moving as well causing the moon to have to move more to get into the alignment it needs to start the cycle again.

Question 4

Why is there no atmosphere on the moon?

Answer 4

The gravity is too weak

Question 5

What are Seas (maria)?

Answer 5

Dark patches on the moon (no actual water) e.g. sea of storms (oceanus proceliarum). they are formed when the the moon was cooling from molten rock. It shrank at different rates causing basins.

Question 6

What are Highlands (terrae)?

Answer 6

Lighter parts of the moon, named after mountains on earth e.g. the Alps.

Question 7

What are Craters?

Answer 7

caused by meteors crashing into the moon e.g. Webb and Moltke Crater.

Question 8

What are Rays?

Answer 8

When meteors crash into the surface debris gets strewn out around the crater.

Question 9

What are Rilles?

Answer 9

Valleys on the moon.

Question 10

What are Wrinkle ridges?

Answer 10

found in “graben”/ditch. Large ridges caused by eruptions.

Question 11

What are Domes?

Answer 11

A type of shield volcano found on the surface of the moon. Wide + rounded with gentle slopes e.g. milichivis pi

Question 12

What are Mascons?

Answer 12

Mass concentration is a region of the moons crust that contains a gravitational anomaly

Question 13

which side of the moon has the thicker crust? (causing the two face to be so different)

Answer 13

The far side.