Unit 1: Review Flashcard

Front

Why can we see stars only at night?

Back

The Sun's light blocks them during the day.

Front

What causes the cycle of day and night on Earth?

Back

Earth spinning on its axis.

Front

Which direction does Earth rotate?

Back

West to East.

Front

What is a constellation?

Back

A group of stars that form a pattern.

Front

What is the main reason we cannot see stars during the day?

Back

The brightness of the Sun.

Front

What is the term for the imaginary line that Earth spins around?

Back

Axis.

Front

How long does it take for Earth to complete one rotation?

Back

24 hours.

Front

What is the effect of Earth's rotation on shadows?

Back

Shadows move as the Sun appears to move across the sky.

Front

What is the name of the pattern formed by stars in the sky?

Back

Constellation.

Front

What is the relationship between the Sun and the Moon in terms of visibility of stars?

Back

The Moon does not block stars; the Sun's light does.