Earth Science - Chapter 1

Front

What is an eclipse?

Back

An eclipse is the blocking of light shining on an object in space.

Front

How long does it take for Earth's moon to orbit Earth?

Back

The Earth's moon takes about a month to orbit Earth.

Front

What causes the Earth's seasons?

Back

The Earth's seasons are caused by Earth's orbit and tilt on its axis.

Front

What determines the length of one day on Earth?

Back

The length of one day depends on the rotation of the Earth.

Front

What happens during a total solar eclipse?

Back

During a total solar eclipse, there is no sunlight reaching the area experiencing the eclipse.

Front

What is the equinox?

Back

An equinox is a time when day and night are of approximately equal length.

Front

What is a solstice?

Back

A solstice is an event that occurs when the sun reaches its highest or lowest point in the sky at noon.

Front

What is the difference between rotation and revolution?

Back

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

Front

What is the tilt of the Earth?

Back

The tilt of the Earth is the angle at which Earth is tilted in relation to its orbit around the sun, approximately 23.5 degrees.

Front

What is a hemisphere?

Back

A hemisphere is half of the Earth, usually divided into Northern and Southern hemispheres.