| A | B |
|---|
| Mercury | closest planet to the Sun |
| Mercury | size and surface of Earth's moon |
| Mercury | shortest year of any planet |
| Mercury | no atmosphere because of Sun's gravity |
| Mercury | 2nd smallest planet |
| Mercury | very hot days/ very cold nights |
| Venus | Earth's twin |
| Venus | planet with hottest temperatures |
| Venus | 2nd planet from the Sun |
| Venus | toxic atmosphere/ severe acid rain |
| Venus | severe greenhouse effect |
| Venus | brightest planet seen from Earth |
| Earth | has water in all 3 states |
| Earth | significant amounts of oxygen in atmosphere |
| Earth | 3rd planet from the Sun |
| Earth | only planet which supports life |
| Earth | largest of the terrestrial planets |
| Mars | violent storms have distroyed space probes |
| Mars | highest mountain in solar system |
| Mars | 4th planet from Sun |
| Mars | red planet |
| Jupiter | largest planet |
| Jupiter | Great Red Spot is continuous storm |
| Jupiter | if it were larger could have become a star |
| Jupiter | 5th planet from the Sun |
| Saturn | 6th planet from the Sun |
| Saturn | circled by thousands of rings of ice and dust |
| Saturn | lowest density of any planet |
| Uranus | 7th planet from the Sun |
| Uranus | high degree of tilt, roll on axis |
| Uranus | sister planet to Neptune |
| Uranus | green planet |
| Neptune | usually 8th planet from the Sun |
| Neptune | blue like the sea |
| Neptune | sister planet to Uranus |
| Pluto | usually 9th planet from the Sun |
| Pluto | smallest planet |
| Pluto | planet of rock and ice |
| Pluto | so cold that atmosphere freezes |
| Pluto | moon is half the size of planet |
