Moon Phases

Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. What makes it possible for you to see the surface of the moon from Earth?

• The moon gives off its own light.

• Light from Earth is reflected by the moon’s surface.

• Light from the sun is reflected by the moon’s surface.

• The moon absorbs sunlight during the day and glows at night.

The moon revolves around Earth. The moon travels at a speed of about 1 km/s. Which of the following keeps the moon in orbit around Earth?

• gravity

• magnetism

• ocean tides

• solar nuclear fusion

Which letter shows a NEW MOON?

• G

• B

• H

• A

Which letter shows a FULL MOON?

• H

• A

• B

• G

Which letter shows a WAXING CRESCENT?

• E

• D

• F

• C

Which letter shows a WANING GIBBOUS?

• D

• E

• C

• F

Which letter shows a THIRD QUARTER moon?

• A

• B

• G

• H

In what direction does the moon orbit the Earth?

• Clockwise

• Counterclockwise

How much of the moon is ALWAYS lit up?

• 25%

• 50%

• 5%

• 23.5%

Which letter represents a Waning Gibbous?

• D

• F

• C

• B