Lesson 1: Shadows, Rotation & Revolution

Front

What is the zenith point of the Sun in the sky?

Back

The zenith point is the highest point the Sun reaches in the sky, which occurs at noon.

Front

What is the primary reason the Sun appears to rise and set every day?

Back

The primary reason is the Earth's rotation upon its axis.

Front

True or False: The Earth is always half illuminated by the Sun and half in darkness.

Back

True.

Front

What do we call the time when the Sun disappears below the horizon?

Back

Sunset.

Front

In which direction does the Sun rise?

Back

The Sun rises in the east.

Front

In which direction does the Sun set?

Back

The Sun sets in the west.

Front

What is the effect of the Earth's rotation on the appearance of the Sun in the sky?

Back

The Earth's counterclockwise rotation causes the Sun to appear to move from east to west.

Front

What is the term for the circular path the Earth takes around the Sun?

Back

Revolution.

Front

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

Back

Approximately 365.25 days.

Front

What is the difference between rotation and revolution?

Back

Rotation refers to the spinning of the Earth on its axis, while revolution refers to the Earth's orbit around the Sun.