Seasons

Front

What are the four seasons?

Back

Spring, Summer, Fall (Autumn), Winter.

Front

What causes the seasons?

Back

The tilt of the Earth's axis and its orbit around the Sun.

Front

What is the Earth's axis?

Back

An imaginary line that goes from the North Pole to the South Pole.

Front

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

Back

Winter.

Front

Why is the Equator the warmest part of the Earth?

Back

Because it receives the most direct sunlight.

Front

What does the rotation of the Earth cause?

Back

Day and night.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of the Earth on its axis; revolution is the orbit of the Earth around the Sun.

Front

What is the vernal equinox?

Back

The time in spring when day and night are approximately equal in length.

Front

How long does it take for the Earth to complete one revolution around the Sun?

Back

About 365.25 days.

Front

What is the significance of the summer solstice?

Back

It is the longest day of the year in the Northern Hemisphere.