| A | B |
|---|
| Center of Sun | Core |
| 1st person to walk on Moon | Neil Armstrong |
| Comet | Chunk of Rock & Ice |
| Our Galaxy TYPE | Spiral |
| Our Galaxy NAME | Milky Way |
| Waxing | From New to Full -- Growing |
| Waning | From Full to New -- Shrinking |
| Inner Planets | Mercury, Venus, Earth, Mars |
| Outer Planets | Jupiter, Saturn, Uranus, Neptune |
| Gibbous | More than half, less than full |
| Crescent | Less than half, more than none |
| Lunar Maria | Flat plains -- smooth, dark areas of moon |
| Lunar Highlands | rocky hills -- rough areas of moon |
| Polaris | North Star, in the Ursa Minor Constellation |
| Constellation | group of stars that create patterns in the sky |
| Meteorite | chunk of rock that has hit the surface of the Earth |
| 1 Earth Rotation = _______ | 24 hours, 1 day |
| 1 Earth Revolution = _______ | 365 days, 1 year |
| Rotation | Spinning on an Axis |
| Revolution | Orbiting another body |
| Solar Eclipse | Moon casts shadow on Earth |
| Lunar Eclipse | Earth casts shadow on Moon |
| Phases of the Moon | New Moon, Waxing Crescent, 1st Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, Waning Crescent |
| Which is larger: Universe vs. Galaxy | Universe |
| Which is larger: Star vs. Planet vs. Moon | Star |
