Why Does the Moon Change Shape?

How often do the Moon's phases repeat themselves?

• every 4 weeks
• every 29 days
• every 27 days
• every 31 days

According to the selection, the Moon is similar to a top because 

• they spin in a similar way
• they have the same shape
• they spin at a similar angle
• they move at the same speed

According to the selection, why does the Moon look bigger and brighter to us than planets?

• In is much farther from the Earth than the planets.
• It is much closer to Earth than the planets.
• It produces its own light.
• It is a star.

Name the phase of the moon for letter a

• First Quarter
• Last Quarter
• Waxing Gibbous
• Waning Gibbous

What is illuminating the Moon?

• Nuclear Fusion
• Sunlight
• Mirrors
• Flood Lights

Name the moon phase

• waning crescent
• waxing crescent
• waning gibbous
• waxing gibbous

Which Moon phase is missing from this sequence:  New Moon, Crescent Moon, ___________, Gibbous Moon, Full Moon,
Gibbous Moon, Last Quarter Moon, Crescent Moon

• Half Moon
• First Quarter Moon
• 2nd Quarter Moon
• Waning Moon

During the phases of the Moon, the Moon appears to change shape.  This change in appearance is due to the Moon...

• physically changing size and shape.
• moving closer and then farther away from Earth.
• reflecting a different amount of light due to alignment with Earth and the Sun.
• having craters on its surface.

As the Moon's shape appears to get smaller, we say that the moon is _.

• swelling
• waxing
• waning
• disappearing

One complete trip along an orbit.

• revolution
• cycle
• phase
• rotation