Bill Nye: Seasons

Front

What causes daytime and nighttime?

Back

Daytime and nighttime are caused by the rotation of the Earth on its axis.

Front

What season occurs when our part of the world is tilted toward the sun?

Back

Summer is the season when our part of the world is tilted toward the sun.

Front

How long does it take the Earth to travel around the sun?

Back

It takes the Earth 1 year to travel all the way around the sun.

Front

What is the term for when days and nights are equal?

Back

Equinox is the term for when days and nights are equal.

Front

How fast does the Earth turn in miles per hour?

Back

The Earth turns at approximately 1,000 mph.

Front

What is the tilt of the Earth's axis?

Back

The Earth's axis is tilted at an angle of about 23.5 degrees.

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.

Front

What are the two types of equinoxes?

Back

The two types of equinoxes are the vernal (spring) equinox and the autumnal (fall) equinox.

Front

What is the significance of the summer solstice?

Back

The summer solstice is the longest day of the year and marks the start of summer.

Front

What is the significance of the winter solstice?

Back

The winter solstice is the shortest day of the year and marks the start of winter.