Moon phases and tides

Approximately how long does it take the moon to revolve around the Earth?

• 28 days

• 365 days

• 24 hrs

• 12 hrs

How much of the moon is always lit by the sun?

• all of it

• 3/4

• 1/2

• It depends on the time of the month

What direction does the moon revolve around the Earth?

• clockwise

• vertically

• retrograde

• counterclockwise

Why do we see different phases of the moon?

• It depends on the position between the Earth, moon and sun (our viewing angle)

• It depends on how bright the sun is

• It depends on how much of the moon is lit up

• It depends on the tides

When the moon is between the Earth and the sun, what phase would we see?

• new moon

• full moon

• 1st quarter

• last quarter

What moon phase would we see if the moon was in this position around the Earth?

• new moon

• full moon

• 1st quarter

• last quarter

Why is the a moon that is half lit on the right side called a 1st quarter moon?

• Because the lit moon resembles the quarter coin

• Because 1/4 of the moon is lit up

• Because only 1/4 of the moon is not lit up

• Because it is 1/4 of the way through its orbit

When we see a small portion of the moon(less than 1/2) lit up, we refer to that as a ....

• full moon

• gibbous

• crescent

• new moon

The moon phases when more than 1/2 of the moon appears to be lit, it is called a ......

• crescent

• gibbous

• full moon

• new moon

What is the MAIN cause of the tides?

• The moon's gravity

• The wind

• Earthquakes

• The Earth's gravity