Science 9.1

Front

What causes light and darkness on Earth?

Back

Light and darkness are caused by Earth's turning on its axis and by Earth's orbiting the sun.

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NGSS.MS-ESS1-1

Front

When does an equinox occur?

Back

An equinox occurs every March and September.

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NGSS.MS-ESS1-1

Front

What is an axis?

Back

An axis is an imaginary line around which a body rotates.

Front

Why do different seasons occur?

Back

Different seasons occur because of Earth's tilt.

Tags

NGSS.MS-ESS1-1

Front

What happens during an equinox?

Back

During an equinox, the length of days is equal to the length of night, 12 hours, everywhere on Earth except the poles.

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NGSS.MS-ESS1-1

Front

What is the tilt of the Earth?

Back

The tilt of the Earth is the angle at which the Earth is tilted in relation to its orbit around the sun, affecting seasons.

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NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

Front

What are solstices?

Back

Solstices are the times of the year when the sun reaches its highest or lowest point in the sky at noon, marking the longest and shortest days.

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NGSS.MS-ESS1-1

Front

What is revolution in terms of Earth?

Back

Revolution refers to the Earth's orbit around the sun, taking approximately 365.25 days to complete.

Front

What is the difference between rotation and revolution?

Back

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

Tags

NGSS.MS-ESS1-1

Front

What is a season?

Back

A season is a division of the year marked by changes in weather, ecology, and daylight hours, caused by Earth's tilt and orbit.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6