Sun-Earth-Moon System Review

Front

What happens on an equinox?

Back

On an equinox, neither hemisphere is tilted toward or away from the sun, resulting in nearly equal day and night lengths.

Front

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

Back

The Earth completes one revolution around the sun in approximately 365 1/4 days.

Front

Does the moon produce its own light?

Back

No, the moon does not produce its own light; it reflects light from the sun.

Front

What is the term for Earth's spinning on its axis?

Back

The term for Earth's spinning on its axis is 'rotation'.

Front

What is the winter solstice?

Back

The winter solstice is the day with the fewest hours of sunlight in the northern hemisphere.

Front

What is the difference between rotation and revolution?

Back

Rotation refers to the spinning of an object on its axis, while revolution refers to the movement of one object around another.

Front

What causes the seasons on Earth?

Back

The tilt of Earth's axis and its revolution around the sun cause the seasons.

Front

What is an orbit?

Back

An orbit is the path one object takes around another object in space due to gravitational forces.

Front

What is a lunar phase?

Back

A lunar phase is the appearance of the moon as seen from Earth, which changes as the moon orbits the Earth.

Front

What is the significance of the summer solstice?

Back

The summer solstice is the day with the most hours of sunlight in the northern hemisphere.