Rotate, Revolve, Shadows, Seasons

Front

What is rotation?

Back

Rotation is the spinning of an object around its own axis. For example, the Earth rotates on its axis, which takes about 24 hours.

Front

What is revolution?

Back

Revolution is the movement of one object around another. For example, the Earth revolves around the Sun, taking about one year.

Front

What causes day and night?

Back

Day and night are caused by the rotation of the Earth. When one side of the Earth faces the Sun, it is day, and when it faces away, it is night.

Front

What is a shadow?

Back

A shadow is a dark area created when an object blocks light from a light source.

Front

Which light source is the main cause of shadows outdoors?

Back

The Sun is the main light source that causes shadows outdoors.

Front

What happens to shadows when the Sun is high in the sky?

Back

When the Sun is high in the sky, shadows become shorter.

Front

Where does the Sun rise?

Back

The Sun rises in the East.

Front

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

Back

It takes one year for the Earth to complete one revolution around the Sun.

Front

What are the four seasons?

Back

The four seasons are spring, summer, autumn (fall), and winter.

Front

What causes the change of seasons?

Back

The change of seasons is caused by the tilt of the Earth's axis and its revolution around the Sun.