Earth Rotation and Revolution

Front

What is Earth Rotation?

Back

Earth rotation is the spinning of the Earth on its axis, which takes about 24 hours to complete one full turn.

Tags

NGSS.MS-ESS2-6

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What is Earth Revolution?

Back

Earth revolution is the movement of the Earth around the Sun, which takes about 365.25 days to complete one full orbit.

Tags

NGSS.HS-ESS1-4

Front

What causes day and night?

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Day and night are caused by the rotation of the Earth. When one side of the Earth faces the Sun, it experiences day, while the opposite side experiences night.

Tags

NGSS.MS-ESS1-1

Front

What is a solstice?

Back

A solstice is an event that occurs twice a year when the Sun reaches its highest or lowest point in the sky at noon, marking the longest and shortest days of the year.

Tags

NGSS.MS-ESS1-1

Front

What are the two solstices?

Back

The two solstices are the Summer Solstice (around June 21) and the Winter Solstice (around December 21).

Tags

NGSS.MS-ESS1-1

Front

What is an equinox?

Back

An equinox is an event that occurs twice a year when day and night are approximately equal in length, marking the beginning of spring and fall.

Tags

NGSS.MS-ESS1-1

Front

What are the two equinoxes?

Back

The two equinoxes are the Spring Equinox (around March 21) and the Fall Equinox (around September 23).

Tags

NGSS.MS-ESS1-1

Front

How does the tilt of the Earth affect seasons?

Back

The tilt of the Earth's axis (about 23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.

Tags

NGSS.MS-ESS1-1

Front

What season is it in the northern hemisphere on June 21?

Back

It is summer in the northern hemisphere on June 21.

Tags

NGSS.MS-ESS1-1

Front

What season is it in the southern hemisphere on June 21?

Back

It is winter in the southern hemisphere on June 21.

Tags

NGSS.MS-ESS1-1