Earth-Moon System

How far away is the Moon?

• 238,00 miles

• 384,000 kilometers

• 30 times the diameter of the Earth

• 1 AU (astronomical unit)

Low flat dark plains on the Moon formed by ancient lava flows

• craters

• maria

• highlands

Most craters on the Moon formed by

• meteor impacts

• volcanic activity

• plate tectonics

• aliens

The current theory on the formation of the Moon has

• a Mar's-sized object hitting Earth about 4.6 billion years ago

• the Earth capturing the Moon has it flew by

• the early Earth spining so fast it flung off the material to make the Moon

What phase of the Moon is this?

• first quarter

• waning gibbous

• last quarter

• waxing crescent

How long does it take the Earth to revolve?

• 365 days

• 365.25 days

• 23 hours 56 minutes

• 24 hours

How long does take the Moon to rotate?

• 1 Earth days

• 27.3 Earth days

• 29.5 Earth days

• 365.25 Earth days

How long does it take the Moon to complete one full cycle of phases?

• 29.5 Earth days

• 27.3 Earth days

• 24 hours

• 24 hours 50 minutes

The Moon's rotation = the Moon's revolution. This means we see

• the phases of the Moon

• the far side of the Moon

• the same side of the Moon

• a Full Moon every 2 weeks

During a solar eclipse

• the Moon is a New Moon

• the Moon casts a shadow on the Earth

• you need to protect your eyes

• everyone on the night side of Earth can see it