Amplify Earth Moon Sun Unit Study Guide

The diagram above shows Earth and the Moon from above (top view). Why is there a dotted circle drawn in this diagram?

• To show the locations where the sun’s light can reach the Moon.

• To show the locations of satellites that are in Earth’s atmosphere.

• To show the way that the Moon can move back and forth across Earth’s sky.

• To show that the Moon is always moving around Earth in a circle.

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The Moon does not make its own light. The sun illuminates the Moon.

• TRUE

• FALSE

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Shira looked up one night and saw a full moon. How long will it be before she can see a full moon again?

• About one week.

• About one month.

• There is no way to tell because the Moon’s pattern is always changing.

• It could be two weeks or a month, depending on what time of year it is.

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What is true about the sun and the moon?

• The sun illuminates the half of the Moon that is facing it, and the other half is dark.

• The sun illuminates the half of the Moon that is not facing it, and the other half is dark.

• The sun illuminates the entire moon and no part of it is dark.

• The Moon makes its own light and the sun doesn't have anything to do with it.

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From Earth...

• we can only see the half of the moon that is facing us

• we see the moon all the time

• we can only see the half of the moon that is facing away from us

• we never see the moon

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Why do we see different phases of the moon?

• We see different amounts of the illuminated half of the moon because the moon moves to different positions around the Earth.

• We see different phases of the moon due to the colored rocks we see from Earth.

• We see different amounts of the Moon due to how close it is to the sun.

• We don't see different phases of the moon.

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Is there a pattern to the position of the Moon?

• Yes-because the Moon orbits around Earth.

• Yes-because the Moon gets closer or farther away from the sun.

• No-the moon appears in the sky at different times and is unpredictable.

• No-the moon never moves or changes.

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Is there ever a time that the moon will be completely dark from Earth's perspective?

• Yes, only during a lunar eclipse.

• Yes, always during a new moon.

• Yes, always during a new moon and sometimes during a full moon when a lunar eclipse is possible.

• No, the moon is always half illuminated by the sun.

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The moon is only completely dark...

• never, it is always halfway illuminated by the sun.

• during a new moon phase.

• when the sun, Earth, and moon are in a straight line with Earth in the middle.

• when the sun, moon, and Earth are in a straight line with the moon in the middle.

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a moon phase that looks like half a circle from Earth

• quarter moon

• full moon

• new moon

• gibbous moon

• crescent moon

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