Rotation, Revolution, and Seasons

Front

What is rotation in terms of Earth’s movement?

Back

Rotation is the spinning of the Earth on its axis, which takes approximately 24 hours and causes day and night.

Front

What is revolution in terms of Earth’s movement?

Back

Revolution is the movement of the Earth around the Sun, which takes about 365.25 days and causes the seasons.

Front

What is the equator?

Back

The equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres, located at 0 degrees latitude.

Front

What are the tropics of Cancer and Capricorn?

Back

The Tropic of Cancer is located at 23.5 degrees North latitude, and the Tropic of Capricorn is at 23.5 degrees South latitude; these lines mark the furthest points north and south where the sun can be directly overhead.

Front

What is a solstice?

Back

A solstice is an event that occurs twice a year when the sun reaches its highest or lowest point in the sky at noon, resulting in the longest and shortest days of the year.

Front

What is an equinox?

Back

An equinox is an event that occurs twice a year when day and night are approximately equal in length, occurring in spring and autumn.

Front

How does the tilt of the Earth affect seasons?

Back

The tilt of the Earth's axis (approximately 23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.

Front

What happens during the summer solstice in the Northern Hemisphere?

Back

During the summer solstice, the Northern Hemisphere is tilted toward the sun, resulting in the longest day of the year.

Front

What happens during the winter solstice in the Northern Hemisphere?

Back

During the winter solstice, the Northern Hemisphere is tilted away from the sun, resulting in the shortest day of the year.

Front

Why are the poles colder than the equator?

Back

The poles receive sunlight at a more oblique angle, spreading the energy over a larger area, while the equator receives direct sunlight, making it warmer.