Earth's Revolution

Front

What is Earth's revolution?

Back

Earth's revolution is the movement of Earth around the Sun in an elliptical orbit, taking approximately 365.25 days to complete one full orbit.

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NGSS.MS-ESS1-2

Front

What causes the seasons on Earth?

Back

The seasons are caused by the tilt of Earth's axis and its revolution around the Sun.

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NGSS.MS-ESS1-1

Front

What is the tilt of Earth's axis?

Back

Earth's axis is tilted at an angle of approximately 23.5 degrees from perpendicular to its orbital plane.

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NGSS.MS-ESS1-1

Front

How does the tilt of Earth's axis affect the Northern Hemisphere during winter?

Back

During winter in the Northern Hemisphere, the North Pole is tilted away from the Sun, resulting in shorter days and colder temperatures.

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NGSS.MS-ESS1-1

Front

What happens during the equinoxes?

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During the equinoxes, day and night are approximately equal in length, occurring around March 21 (Spring Equinox) and September 23 (Fall Equinox).

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NGSS.MS-ESS1-1

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of Earth on its axis, while revolution is the movement of Earth around the Sun.

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Why do we experience night and day?

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We experience night and day because of Earth's rotation on its axis, not because the Sun revolves around the Earth.

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What is the significance of the solstices?

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The solstices mark the longest and shortest days of the year, occurring around June 21 (Summer Solstice) and December 21 (Winter Solstice).

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NGSS.MS-ESS2-6

Front

What is an elliptical orbit?

Back

An elliptical orbit is an oval-shaped path that an object follows as it revolves around another object, such as Earth around the Sun.

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

How long does it take for Earth to complete one revolution around the Sun?

Back

It takes approximately 365.25 days for Earth to complete one revolution around the Sun.

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NGSS.MS-ESS1-2