| A | B |
| Meteorite | meteoroid that survives it's passage into Earth's atmosphere |
| Meteor | Shooting star |
| coma | cloud like mass in front of a comet |
| eclipse | one planetary body passes through shadow of another |
| nucleus | solid part of a comet |
| Venus & Earth | similar size & density |
| Mercury, Venus, Earth , Mars | inner planets |
| Jupiter | has Giant Red Spot |
| retrograde motion | Venus, Uranus, Pluto |
| Mars | reddish due to rust |
| Saturn's rings | composed of ice and rock |
| Uranus | looks like it's tilted on its side |
| Pluto | some think it is not a planet due to small size |
| Io and Ida | Moons of Jupiter |
| Sulphuric acid | in the clouds of Venus' atmosphere |
| Earth | only planet with life |
| Greenhouse effect, atmosphere mostly CO2 | Venus |
| no atmosphere due to solar winds | Mercury |
| Planet of the Oceans | Earth |
| The Red Planet due to rust | Mars |