Earth's Rotation, Revolution, and Seasons

Front

The spinning of a celestial object on an imaginary line called an axis

Back

Rotation

Front

The orbiting of one celestial object (Earth) around another celestial object (Sun).

Back

Revolution

Front

The image shows Earth's __?__.

Back

Rotation

Front

About how long does Earth's rotation take?

Back

24 hours

Front

About how long does one complete revolution of Earth around the Sun take?

Back

365.25 days

Front

Why does Earth have seasons?

Back

Earth revolves around the Sun and is tilted on its axis of rotation.

Front

This is when the Sun is directly over the equator and the sun is shining on half of the Earth equally.

Back

Equinox

Front

This is when the Sun in the sky reaches its northernmost or southernmost extremes.

Back

Solstice

Front

An equinox signals the start of which two seasons?

Back

Autumn and Spring

Front

A solstice signals the start of which two seasons?

Back

Summer and Winter