Earth Rotation and Revolution

Front

What is Earth's rotation?

Back

The spinning of Earth on its axis, which takes about 24 hours to complete.

Front

What is Earth's revolution?

Back

The movement of Earth around the Sun, which takes about 365.25 days to complete.

Tags

NGSS.MS-ESS1-2

Front

What is an equinox?

Back

A time when day and night are of equal length, occurring twice a year.

Front

What happens during a solstice?

Back

The longest or shortest day of the year, marking the start of summer or winter.

Tags

NGSS.MS-ESS1-1

Front

What season begins on March 21 in the northern hemisphere?

Back

Spring.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

Front

If it is spring in the northern hemisphere, what season is it in the southern hemisphere?

Back

Fall.

Tags

NGSS.MS-ESS1-1

Front

What is the tilt of Earth's axis?

Back

About 23.5 degrees, which affects the seasons.

Tags

NGSS.MS-ESS1-1

Front

What causes day and night?

Back

The rotation of Earth on its axis.

Front

What is the significance of the Tropic of Cancer and Tropic of Capricorn?

Back

They mark the furthest points north and south where the sun can be directly overhead.

Tags

NGSS.MS-ESS2-6

Front

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

Back

About 365.25 days.

Tags

NGSS.MS-ESS1-2