Seasons, Insolation, Revolution and some Rotation

Front

What is the tilt of the Earth's axis?

Back

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

Front

Why do globes lean sideways?

Back

Globes lean sideways to demonstrate the tilt of Earth's axis.

Front

What is insolation?

Back

Insolation is the amount of solar radiation received by a surface area over a specific time.

Front

How does the angle of sunlight affect temperature?

Back

The more direct the sunlight (closer to 90 degrees), the more heat is received, warming the area more.

Front

What season occurs when the Earth is at aphelion?

Back

Summer occurs when the Earth is at aphelion, the point furthest from the Sun.

Front

What is the significance of the Earth's revolution?

Back

The Earth's revolution around the Sun causes the changing of seasons throughout the year.

Front

What is the difference between rotation and revolution?

Back

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

Front

At what angle is sunlight received the least?

Back

Sunlight is received the least at an angle of 30 degrees.

Front

What is the equinox?

Back

An equinox is a point in time when day and night are of approximately equal length, occurring in spring and fall.

Front

What is the 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, marking the longest and shortest days.