Understanding Earth's Seasons

What causes the changing seasons on Earth?

• The Earth's distance from the Sun

• The Earth's rotation on its axis

• The tilt of the Earth's axis and its orbit around the Sun

• The Sun's rotation

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Which term describes the time of year when the Earth's axis is tilted furthest away or closest to the Sun?

• Equinox

• Eclipse

• Winter Solstice

• Aphelion

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During the summer solstice in the Northern Hemisphere, the Sun is directly overhead at which latitude?

• The Equator (0°)

• The Tropic of Cancer (23.5°N)

• The Tropic of Capricorn (23.5°S)

• The Arctic Circle (66.5°N)

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On what date does the winter solstice typically occur in the Northern Hemisphere?

• March 21

• June 21

• September 23

• December 21

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What is the main difference between the equinoxes and the solstices?

• Solstices are in summer, and equinoxes are in winter.

• Solstices mark the longest and shortest days, while equinoxes have equal day and night.

• Equinoxes occur twice a year, and solstices occur once.

• Equinoxes are hotter than solstices.

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Which of the following occurs during the March equinox?

• The Northern Hemisphere experiences summer.

• Both hemispheres receive equal amounts of sunlight.

• The Southern Hemisphere experiences winter.

• The Sun is directly over the Tropic of Cancer.

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NGSS.MS-ESS2-6

Which season begins in the Southern Hemisphere in December ?

• Spring

• Summer

• Autumn

• Winter

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During the September equinox, which hemisphere is starting to tilt away from the Sun?

• Northern Hemisphere

• Southern Hemisphere

• Both Hemispheres

• Neither Hemisphere

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How many times a year do equinoxes occur?

• Once

• Twice

• Three times

• Four times

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Why are the summer solstice days longer than the winter solstice days in the Northern Hemisphere?

• The Earth moves slower in summer.

• The Earth is tilted towards the Sun during summer.

• The Sun is closer to the Earth in summer.

• The Northern Hemisphere receives more sunlight in winter.

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NGSS.MS-ESS1-1