Rotation, Revolution, and Earth's Tilt

Front

What is rotation in the context of Earth?

Back

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

Front

What is revolution in the context of Earth?

Back

Revolution is the movement of Earth around the Sun, taking about 365.25 days to complete one full orbit, which defines a year.

Front

What is Earth's axial tilt?

Back

Earth's axial tilt is the angle between Earth's rotational axis and its orbital plane around the Sun, approximately 23.5 degrees, which affects the seasons.

Front

How does Earth's tilt affect the seasons?

Back

Earth's tilt causes different hemispheres to receive varying amounts of sunlight throughout the year, leading to the changing seasons.

Front

What season occurs in the Northern Hemisphere when it is summer?

Back

When it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere.

Front

What causes day and night on Earth?

Back

Day and night are caused by Earth's rotation on its axis, as different parts of the Earth face the Sun or move away from it.

Front

What is the first day of fall in the Northern Hemisphere called?

Back

The first day of fall in the Northern Hemisphere is called the Autumnal Equinox.

Front

What is the opposite of fall in terms of seasons?

Back

The opposite of fall is spring.

Front

When does the Southern Hemisphere experience summer?

Back

The Southern Hemisphere experiences summer when the Northern Hemisphere is in winter, typically from December to February.

Front

What is the significance of the equinoxes?

Back

Equinoxes are significant because they mark the points in the year when day and night are approximately equal in length, occurring in spring and fall.