The Moon, Our Constant Companion

with Dr. Tony Crider

Student Learning Objectives

• Answer questions related to the

phases of the moon.

• Build a scale model of the Earth-

Moon system.

• Discuss lunar and solar eclipses.

What causes the phases of the Moon?

What’s wrong with this picture?

If the Moon was in its third quarter last Saturday, what phase will it be this Saturday?

waning crescentA B

C D

waxing crescent

first quarter new

A B

C D

Which figure most closely represents the arrangement of the Earth, Sun, and Moon as

the were in the previous picture?

If a new moon is setting, where is the Sun?

rising in the East.A B

C D

setting in the West.

overhead in the South.

below the horizon.

If a full moon is rising, where is the Sun?

rising in the East.A B

C D

setting in the West.

overhead in the South.

below the horizon.

If a first quarter moon is rising, where is the Sun?

rising in the East.A B

C D

setting in the West.

overhead in the South.

below the horizon.

If a third quarter moon is setting, where is the Sun?

rising in the East.A B

C D

setting in the West.

overhead in the South.

below the horizon.

If a first quarter moon is due South, what time of day is it?

midnightA B

C D

6 AM

noon 6 PM

The Moon...always points the same face toward the Sun.

A B

CD

does not rotate.

rotates at the same rate as the Earth -- once per day.

rotates on its axis with the same period as its revolution about the Earth.

Make a model of the Earth and Moon using Play-Doh.

A

B

C

D

03CO, p. 30

A

B

C

D

A

B

C

D

Exam Review