8.7ABC Review

Based on the diagram, what is the movement depicted by the arrows called, and what is the effect of this motion?

• rotation, seasons

• revolution, day and night

• rotation, day and night

• revolution, seasons

Answer explanation

The correct movement depicted by the arrows is rotation, which causes day and night as the Earth spins on its axis.

The part of Earth tilted toward the Sun changes throughout the year, as shown in the diagram. In which position is Earth when the Northern Hemisphere is experiencing summer?

• Position A

• Position B

• Position C

• Position D

Answer explanation

Earth is in Position D when the Northern Hemisphere is experiencing summer due to the tilt of the Earth's axis towards the Sun, causing longer days and warmer temperatures.

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NGSS.MS-ESS1-1

In which position is Earth when the Southern Hemisphere is experiencing spring?

• Position A

• Position B

• Position C

• Position D

Answer explanation

The Southern Hemisphere experiences spring when Earth is in Position A.

Tags

NGSS.MS-ESS1-1

A foam ball and a lamp are used to model Earth's revolution. When Earth reaches position R in the model, which season will Texas experience?

• winter

• spring

• summer

• fall

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Which of the locations on the diagram will experience sunrise next?

• Location U

• Location X

• Location Y

• Location Z

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Which of the following moon phases is visible from Earth when the moon is located at position 8?

• waning gibbous

• waxing gibbous

• waning crescent

• waxing crescent

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NGSS.MS-ESS1-1

Which of the following moon phases is visible from Earth when the moon is located at position 4?

• waning gibbous

• waxing gibbous

• waning crescent

• waxing crescent

Answer explanation

When the moon is at position 4, it is in the waxing gibbous phase, making it visible from Earth.

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The table above shows the dates of August moon phases. What is the approximate date for when the right half of the moon appears to be illuminated from Earth's view in September?

• September 1st

• September 9th

• September 17th

• September 24th

Answer explanation

The right half of the moon appears illuminated on September 1st, as it transitions from a new moon to a waxing crescent phase.

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The diagram shows four consecutive moon phases. Which diagram accurately shows the next four consecutive moon phases?

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• 

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Which of the following diagrams shows where the moon will be two weeks after a waning gibbous moon appears?

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• 

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NGSS.MS-ESS1-1