Merrillville Community Planetarium Solar System Treasure Hunt The Inner Solar System

1. Name the planet which rotates at almost the same speed and is tilted by almost the same amount as Earth.

2. Name the planet that has craters and looks like our moon.

3. Name the planet with a volcano as big as Texas and a canyon as long as the United States.

4. Name two planets that have atmospheres made mostly of carbon dioxide.

5. Name the planet that can be very hot, but has no atmosphere.

6. Name two planets that space probes have landed on.

7. Name the planet that is sometimes called a morning or evening star.

8. Name two planets that have no moons.

9. Name the planet in the inner solar system that has retrograde rotation.

10. Name the planet that is larger than three planets and smaller than four planets. Merrillville Community Planetarium Solar System Treasure Hunt The Outer Solar System

1. Name two planets with a blue-green color due to methane gas in their atmospheres.

2. Name the planet with four moons that were discovered by Galileo.

3. Name the objects described as being a giant snowball.

4. Name the planet with rings that were discovered when the planet passed in front of a star.

5. Name the dwarf planet whose name begins with the same two letters as the name of the astronomer who searched for it.

6. Name the planet named after the Roman god of harvests.

7. Name two planets with large storms in their atmospheres.

8. Name the dwarf planet with the most elliptical or egg-shaped orbit.

9. Name the planet which has a moon that has a thick atmosphere.

10. Name the planet that was discovered because mathematicians predicted its position.

11. Name the objects that form the real outer boundary of our solar system.

12. Name the dwarf planet named after the Greek god of the underworld.

13. Name the first planet to be discovered. Merrillville Community Planetarium Solar System Treasure Hunt Answers

Inner Solar System 1. Mars 2. Mercury 3. Mars 4. Venus, Mars 5. Mercury 6. Venus, Mars 7. Venus 8. Mercury, Venus 9. Venus 10. Earth

Outer Solar System 1. Uranus, Neptune 2. Jupiter (Ganymede, Callisto, Io, Europa) 3. comets 4. Uranus 5. Pluto (Percival Lowell) 6. Saturn 7. Jupiter (“Great Red Spot”), Neptune (“Great Dark Spot”) 8. Pluto 9. Saturn (Titan) 10. Neptune 11. comets 12. Pluto 13. Uranus