Seasons and Day & Night

Front

What is the main reason for the change of seasons on Earth?

Back

The tilt of Earth's axis as it orbits the sun causes different parts of the Earth to receive varying amounts of sunlight throughout the year.

Front

What is the definition of rotation in the context of Earth?

Back

Rotation is the spinning of Earth on its axis, which takes approximately 24 hours to complete.

Front

What is the definition of revolution in the context of Earth?

Back

Revolution is the movement of Earth around the sun, which takes about 365.25 days to complete.

Front

How does the Earth's tilt affect the length of day and night?

Back

The tilt of the Earth causes variations in the length of day and night throughout the year, with longer days in summer and shorter days in winter.

Front

What is the shape of Earth's orbit around the sun?

Back

Earth's orbit around the sun is elliptical (slightly oval).

Front

Why is the Equator warmer than the poles?

Back

The Equator receives more direct sunlight throughout the year compared to the poles, which receive sunlight at a more oblique angle.

Front

What phenomenon causes day and night?

Back

Day and night are caused by the rotation of Earth on its axis, leading to one side facing the sun (day) and the other side away from the sun (night).

Front

What happens to the length of a day if Earth's rotation speed increases?

Back

If Earth's rotation speed increases, the length of a day would become shorter.

Front

What is the significance of the solstices?

Back

Solstices mark the points in the year when the sun reaches its highest or lowest point in the sky at noon, resulting in the longest and shortest days.

Front

What are equinoxes?

Back

Equinoxes are the times of the year when day and night are approximately equal in length, occurring in spring and autumn.