Flashcards: Social Studies 7 (Unit I)

Front

What is the Earth's movement around the sun called?

Back

Revolution

Front

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

Back

365.25 days

Front

What causes the change in seasons?

Back

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

Front

What is the angle of the Earth's tilt?

Back

23.5 degrees

Front

How does the angle of sunlight affect the seasons?

Back

By changing the intensity and duration of sunlight received in different hemispheres.

Front

The invisible line that passes through the North Pole and the South Pole is called Earth's ____

Back

axis

Front

The spinning movement of the Earth about its axis is called the Earth's _____

Back

rotation

Front

What are the four points in the Earth's revolution that mark the beginning of each season?

Back

Vernal Equinox, Summer Solstice, Autumnal Equinox, Winter Solstice

Front

On which date does the Northern Hemisphere receive the most direct sunlight and the longest daylight hours?

Back

June 21st

Front

Which map projection greatly distorts the northern and southern portions of the land areas?

Back

Mercator projection