Front

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

Back

24 hours

Front

What causes day and night on Earth?

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.

Front

What is the shape of the Earth?

Back

The Earth is an oblate spheroid.

Front

What is a revolution in terms of Earth?

Back

The movement of the Earth around the Sun, taking about 365.25 days.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of the Earth on its axis; revolution is the orbit of the Earth around the Sun.

Front

What is a solar day?

Back

The time it takes for the Earth to rotate once on its axis relative to the Sun, approximately 24 hours.

Front

What is a lunar day?

Back

The time it takes for the Moon to rotate once on its axis, about 29.5 Earth days.

Front

What is the significance of the equator?

Back

It is the imaginary line that divides the Earth into the Northern and Southern Hemispheres.

Front

What are time zones?

Back

Regions of the Earth that have the same standard time.