Quiz review.

Which of the following does Earth do?

• Earth rotates on its axis daily and revolves around the Sun.

• Earth rotates on its axis daily and rotates around the Sun.

Why is each day on Earth 24 hours long?

• It takes Earth 24 hours to make a complete revolution around the Sun

• It takes Earth 24 hours to make a complete rotation on its axis

How long does it take Earth to make one full rotation on its axis?

• 24 hours

• 24 months

How many rotations does Earth make on its axis in a single day?

• 1

• 24

Why does it look like the Sun is moving across the sky during the day?

• The Sun is rotating on its axis, causing it to appear in different parts of the sky.

• Earth is rotating on its axis, making it look like the Sun is moving across the sky.

What factor enables humans to view different constellations throughout the year?

• the light from stars bending

• Earth revolving around the Sun.

Earth tilting on its axis causes

• Seasons

• Weather

What occurs about one week after the new moon?

• first quarter

• Full moon

When the Moon is waxing, the lit part appears to be

• decreasing in size

• increasing in size.

About how often is there a full moon?

• approximately every thirty days

• approximately every twenty days