Seasons (Orbits)

Front

What causes the seasons on Earth?

Back

The tilt of the Earth's axis (23.5 degrees) and its orbit around the Sun cause the seasons.

Front

What is the angle of Earth's axial tilt?

Back

23.5 degrees.

Front

Where is the sun directly overhead during the summer solstice in the Northern Hemisphere?

Back

The Tropic of Cancer (23.5 degrees N).

Front

Where is the sun directly overhead during the winter solstice in the Northern Hemisphere?

Back

The Tropic of Capricorn (23.5 degrees S).

Front

What season is represented at point A in a diagram showing Earth's orbit?

Back

Winter.

Front

What season is represented at point C in a diagram showing Earth's orbit?

Back

Spring.

Front

What season is represented at point D in a diagram showing Earth's orbit?

Back

Fall.

Front

What is the significance of the equinoxes?

Back

During equinoxes, day and night are approximately equal in length.

Front

What date marks the summer solstice in the Northern Hemisphere?

Back

June 21.

Front

What date marks the winter solstice in the Northern Hemisphere?

Back

December 21.