| A | B |
|---|
| The milky way galaxy is NOT | an elliptical galaxy |
| During which month of the year is Earth farthest from the sun? | July |
| Which forms when small meteorites crash into the moon? | craters |
| Which planet has the highest surface temperature? | Venus |
| Which is the largest planet? | Jupiter |
| Which model of the solar system places the sun in the center? | heliocentric |
| which is composed of dust and rock particles mixed in with frozen water, methane and ammonia? | comet |
| Which planet has the most complex ring system? | saturn |
| Which is the red planet? | Mars |
| Which chemical or gas produces a green-blue to blue color on Uranus and Neptune? | methane |
| WHich adds to the gravity of a galaxy, but cannot be seen or detected? | dark matter |
| Which may be responsible for the accelerating expansion of the univers? | dark energy |
| Our sun and stars of similar size are called | giants |
| Which type of galaxy is the most common? | spiral |
| which is the most accepted theory of how the universe formed? | big bang |
| Constellations are | groups of stars that form recognizable patterns in the sky |
| A light year is | the distance light travels in one year |
