Moon Phases

About how many days does it take for the moon to go through a complete cycle?

• 7 days
• 365 days
• 28 days
• 20 days

When the visible (lit) portion of the moon is increasing, the moon is:

• waning
• full
• waxing
• new

When the Earth is between the moon and sun, it is most likely a:

• new moon
• full moon
• waxing crescent
• waxing gibbous

If the visible (lit) portion of the moon is on the left, the moon is:

• waxing
• waning
• crescent
• gibbous

Changes in the moon's appearance are

• phases
• eclipses
• stages
• cycle

What causes the moon's phases

• The angle or perspective you are viewing the moon from Earth
• Changes in the amount of sunlight reflecting off the moon.
• The tilt of Earth
• How fast the moon is moving.

As the moon moves from a new moon to a full moon, you see:

• The amount of light is increasing each night.
• The amount of light the moon is decreasing each night.
• The amount of light the moon gets staying constant.
• More light and then less light.

Why do we always see the same side of the moon from Earth?

• because the phases change
• because it rotates and revolves at the same rate
• because half of the moon always receives sunlight
• The moon changes positions

How was the moon created?

• An asteroid collided with the Earth and pieces flew off.
• The Earth was rotating quickly while made of molten rock and a piece flew off.
• It formed at the same time as Earth but separately
• A small planet collided with the Earth and pieces flew off.

The Moon orbits Earth in a ________________ direction

• clockwise
• counterclockwise
• upwards
• downwards