Earth's Motions

Front

What is the name of the first day of spring?

Back

Vernal equinox.

Front

What phenomenon occurs when one side of the Earth experiences daytime while the other side experiences nighttime?

Back

Rotation.

Front

What is the term for the Earth's movement around the Sun, which takes approximately one year to complete?

Back

Revolution.

Front

How long does each season last on Earth?

Back

Each season lasts about 3 months due to the Earth's revolution around the Sun.

Front

What causes the changing of the seasons on Earth?

Back

The tilt of the Earth's axis.

Front

What is the angle of the Earth's axial tilt?

Back

Approximately 23.5 degrees.

Front

What is the significance of the summer solstice?

Back

It is the longest day of the year in the Northern Hemisphere, occurring around June 21.

Front

What is the significance of the winter solstice?

Back

It is the shortest day of the year in the Northern Hemisphere, occurring around December 21.

Front

What is the equinox that occurs in September called?

Back

Autumnal equinox.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of the Earth on its axis, while revolution is the movement of the Earth around the Sun.