Name ________________________
Chapter 2 Science Test Review
1. Why does the moon appear to change shape?
Because of the moon’s revolution around the Earth
2. What does waxing and waning mean?
Waxing – gaining light
Waning – losing light
3. Label all the phases of the moon
First Quarter
Waxing Crescent
Waxing Gibbous
New Moon
Full Moon
Waning Crescent
Waning Gibbous
Last Quarter
4. What causes Earth’s seasons?
The tilt of Earth’s axis
5. What causes day and night?
The rotation of Earth on its axis
6. How does the sun appear to move in the sky?
It looks like the sun rises in the east and sets in the west
7. What would you mostly see when looking at the night sky on a clear night?
You would see stars and maybe the moon depending on the moon’s phase
8. What are constellations?
Fixed patterns of stars
9. What defines the universe?
All the things that exist in space
(planets, stars, galaxies, moons, meteors, comets, and so on)
10. Put the following in order from smallest to largest: solar system, universe, galaxy
Solar system, galaxy, universe
11. In which galaxy would you find Earth?
The Milky Way
12. How do astronomers measure the vast distances of space?
In light years
13. Which color star is the hottest?
Blue
14. Which color star is the coolest?
Red
15. How does the size of our sun compare to other stars?
Our sun is a medium size star. There are stars that are bigger and some stars are
smaller.
16. How many constellations do astronomers recognize?
88 constellations
17. Why can you see different constellations at different times during the year?
Because of the Earth’s revolves around the sun