The Solar System & Beyond: Lesson 2

The picture shows the Moon as it travels around Earth. When the Moon appears completely dark with no lit part visible from Earth, it is called a _____.

• new moon

• full moon

• old moon

• waning gibbous moon

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The chart shows the phases of the Moon. Which conclusion can be made about the phases of the Moon?

• The Moon is full for 20 days every month.

• October is the best month to see the Moon.

• The Moon moves in a regular pattern in the sky.

• The phases of the Moon are random and irregular.

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Which is the name of the event that occurs when the Moon moves into Earth’s shadow and is no longer reached by direct sunlight?

• solar eclipse

• lunar eclipse

• crescent moon

• full moon

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Which phase of the Moon immediately follows a new Moon?

• waxing crescent

• waning gibbous

• waxing gibbous

• waning crescent

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How long is one complete cycle of the Moon’s phases?

• 14.5 days

• 20 days

• 29 days

• 7 days

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Which two days of the Moon’s phases do the first quarter Moon appear?

• 4-5

• 8-9

• 12-13

• 23-24

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When we see less and less of the Moon’s lit side, it is in the _____ phase.

• crescent

• gibbous

• waning

• waxing

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When one space object crosses in front of another, the first object can sometimes block the view of the second. This process is called a(n) _____.

• penumbra

• gibbous

• umbra

• eclipse

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The gravitational pull between Earth and _____ causes tides.

• Mars

• the Moon

• Mercury

• the stars

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The amount of the Moon’s lit side that we can see changes as the Moon revolves around Earth and Earth revolves around the Sun.

• True

• False

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