Unit Review

Front

What is the movement of one object around another called?

Back

Orbiting.

Front

What is the term for the movement of one object around another?

Back

Orbital movement.

Front

Why does Earth have seasons?

Back

Earth's axis is tilted relative to its orbit around the Sun.

Front

How long does the Earth's rotation take?

Back

24 hours.

Front

Why don’t eclipses happen every month?

Back

Because the Moon's orbit is tilted relative to Earth's orbit around the Sun.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of an object around its own axis, while revolution is the movement of an object around another object.

Front

What causes day and night on Earth?

Back

The rotation of the Earth on its axis.

Front

What is an eclipse?

Back

An eclipse occurs when one celestial body moves into the shadow of another celestial body.

Front

What is the tilt of the Earth's axis?

Back

The angle at which the Earth's axis is tilted from vertical, approximately 23.5 degrees.

Front

What is the significance of the Earth's orbit?

Back

The Earth's orbit around the Sun determines the length of a year and affects seasonal changes.