Sun's Rotation and Shadows

Front

What causes day and night on Earth?

Back

The rotation of the Earth on its axis.

Front

How long does it take for the Earth to complete one rotation?

Back

24 hours.

Front

What is the main reason the sun appears to move across the sky?

Back

The rotation of the Earth on its axis.

Front

What is the axis of the Earth?

Back

An imaginary line that runs from the North Pole to the South Pole around which the Earth rotates.

Front

What is a shadow?

Back

A dark area or shape produced by a body coming between rays of light and a surface.

Front

What factors affect the length of a shadow?

Back

The position of the sun in the sky and the height of the object casting the shadow.

Front

What happens to shadows during the day?

Back

Shadows change in length and direction as the sun moves across the sky.

Front

What is the relationship between the sun's position and the length of shadows?

Back

When the sun is low in the sky, shadows are longer; when the sun is high, shadows are shorter.

Front

What is the term for the path the Earth takes around the sun?

Back

Orbit.

Front

What is the difference between rotation and revolution?

Back

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