POLLACK Astronomy Test February 25, 2025

1. Which is the biggest celestial body?

• solar system
• universe
• moons

2. Pick one below. Which is the bigger celestial body?

• Star
• Sun
• Neither, both are the same

3. What does this picture describe?

• Earth's rotation
• Earth's orbit
• An eclipse

4. How long does the process take the Earth to complete this movement in the picture below?

• 7 minutes
• 24 hours
• 365 1/4 days

5. How long does it take the Earth to complete 1 full orbit around the sun?

• 7 minutes
• 3 hours
• 365 1/4 days

6. The Earth's seasons are determined by the moon's and sun's gravitational pulls on the Earth's ocean water.

• True
• False

7. Our solar system contains _________________ star(s).

• 1
• 9
• 100

8. Because they both disappear, the new moon is the same as a lunar eclipse.

• True
• False

9. A ________________ moon represents the phases after a full moon where the moon seems to be decreasing in size (getting smaller) because it is getting less light.

• waxing
• waning

10. It takes the moon approximately ______________ days to go through ALL 8 phases.

• 1
• 28
• 365 1/4