Causes of Moon Phases

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

• 7 days
• 365 days
• 29 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

Approximately how much time passes between the new moon and full moon?

• one month
• two weeks
• 3 days
• 24 hours

Changes in the moon's appearance are

• phases
• eclipses
• stages
• cycle

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

• the moon appearing increasingly lighter
• The amount of light the moon is receiving decreasing
• the amount of light the moon gets staying constant
• more light and then less light

How long does it take the moon to complete an orbit around Earth?

• 23 days
• 29 days (1 month)
• 2 weeks (half a month)
• 365 days (a year)

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

Mrs. Smith says "the moon looks larger than the stars!" What explains this?

• The moons soaks up the star's light
• The moon is larger than Earth
• The moon is larger than stars
• the moon is closer to Earth than stars

The Moon orbits Earth in a ________________ direction

• clockwise
• counterclockwise
• upwards
• downwards