Moon Phases and Seasons STAAR Bootcamp W10

Which diagram shows the relative position of Earth's axis at the beginning of summer in Texas?

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NGSS.MS-ESS1-1

During an investigation in class, a student creates this model. Which of these statements best compares the location of point A and point B?

• Point A is experiencing day while point B is experiencing night.

• Point A is experiencing night while point B is experiencing day.

• Point A is experiencing summer while point B is experiencing winter.

• Point A is experiencing winter while point B is experiencing summer.

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NGSS.MS-ESS1-1

The model shows Earth in four different positions in its orbit around the sun.

Which statement correctly explains which position of Earth represents summer in the United States?

• Position 1, because the Western Hemisphere is facing the sun

• Position 2, because the Northern Hemisphere tilts toward the sun

• Position 3, because Earth is at its closest point to the sun in its orbit

• Position 4, because Earth is traveling at its fastest rate in its orbit

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NGSS.MS-ESS1-1

The diagram shows Earth in its orbit around the sun when very little light is visible at Earth's South Pole.

Which statement is true when Earth is in the position shown?

• It is August in the Northern Hemisphere.

  It is April in the Southern Hemisphere.

• It is summer in the Northern Hemisphere.

  It is winter in the Southern Hemisphere.

• The number of hours of daylight is greater in the Southern Hemisphere than in the Northern Hemisphere.

• Spring begins earlier in the year in the Southern Hemisphere than it does in the Northern Hemisphere.

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NGSS.MS-ESS1-1

Students make a model using a globe and a flashlight.

Which answer choice best explains the change from daytime to nighttime on Earth?

• The sun stops sending light to Earth at night.

• Earth moves farther away from the sun at night.

• The tilt of Earth cause less light to reach Earth at night.

• Earth rotates and causes different parts of Earth to experience night.

Answer explanation

Earth rotates and causes different parts of Earth to experience night.

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NGSS.MS-ESS1-1

Which diagram correctly models the sun, Earth, and the moon during the third quarter of the lunar cycle?

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NGSS.MS-ESS1-1

A student is keeping a moon-phase diary for the month of September. The student checks on the moon every few days and then records the name of the moon phase. The data is shown in the table.

Which moon phase was most likely present on September 9?

• Waning crescent

• Waning gibbous

• New moon

• First quarter moon

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NGSS.MS-ESS1-1

A student is building a model of a solar eclipse. Solar eclipses occur only during a new moon phase. Which motion best demonstrates a solar eclipse?

• The moon moves between the sun and Earth, casting a shadow of the moon on Earth.

• The sun moves between the moon and Earth, casting a shadow of the sun on Earth.

• Earth moves between the sun and the moon, casting a shadow of Earth on the moon.

• Earth moves between the sun and the moon, casting a shadow of the moon on the sun.

Answer explanation

The moon moves between the sun and Earth, casting a shadow of the moon on Earth. This is the motion that best demonstrates a solar eclipse, as solar eclipses occur during a new moon phase when the moon blocks the sun's light from reaching Earth.

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NGSS.MS-ESS1-1

Early one morning students observed the moon as it appeared from Earth.

Which diagram shows the correct relative positions of the sun, the moon, and Earth when the moon was in the observed phase?

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NGSS.MS-ESS1-1

Students recorded the dates in May on which they observed a full moon and a last quarter moon.

On which date will they most likely be able to observe a new moon?

• May 13

• May 18

• May 25

• May 31

Answer explanation

The new moon occurs approximately 14 days after the full moon, so the most likely date to observe a new moon after May 4th (full moon) is May 18th.

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NGSS.MS-ESS1-1