1. Or, just a ‘Mixed Up’ solar system?

2. Moons Moons? No moons?

3. NUMBER OF MOONS Number of Moons 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 60 50 40 30 20 10 0

4. Observations [1] Based on Plot: Number of Moons, objects in the solar system …

5. Observations [1] Based on Plot: Number of Moons, objects in the solar system generally have few moons.

6. SIZE (Radius, in km) Size 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 300,000 10,000 1,000 300 100,000 30,000 100

7. SIZE (Radius, in km) Size 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 300,000 10,000 1,000 300 100,000 30,000 100 Large Medium Small

8. Observations [2] Based on Plot: Size, objects in the solar system …

9. Observations [2] Based on Plot: Size, objects in the solar system have a wide range of sizes.

10. Composition RockyGaseousIce w/some Rock 1, 9, 13, 152, 7, 10, 144, 6, 8, 12

11. SIZE (Radius, in km) Size with Composition 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 300,000 10,000 1,000 300 100,000 30,000 100 Gaseous Rocky Ice w/some Rock

12. SIZE (Radius, in km) Size 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 300,000 10,000 1,000 300 100,000 30,000 100

13. SIZE (Radius, in km) Size with Composition 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 300,000 10,000 1,000 300 100,000 30,000 100 Gaseous Rocky Ice w/some Rock

14. Observations [3] Based on Plot: Size with composition, objects in the solar system …

15. Observations [3] Based on Plot: Size with composition, objects in the solar system with similar composition have similar sizes.

16. Distance from the Sun 1 2 3 4 5 6 7 8 9 10 11 1213 14 15 16 OBJECTS 30,000 Radius of orbit DISTANCE FROM THE SUN (Average radius of orbit, in millions of km) 10,000 3,000 1,000 300 100 30 10

17. Observations [4] Based on Plot: Distance from the Sun, objects in the solar system …

18. Observations [4] Based on Plot: Distance from the Sun, objects in the solar system have a wide range of distances from the Sun.

19. Distance ‘Flipped’ 13, 1, 9, 15, 7, 10, 2, 14, 8, 12, 6, 4 NEAR*FAR*VERRRRYYY FAR* *Relatively speaking of course… - Can you put your objects in order? - Do you know what they are now?

20. What planet is this ? My Very Educated Mother Just Served Us Nine Pizzas

21. General Observations Objects in the solar system – [1] generally have few moons. – [2] have a wide range of sizes – [3] objects in the solar system with similar composition have similar sizes. – [4] have a wide range of distances from the Sun.

22. Object Identifications Object NumberObject NameObject Type 1VenusRocky Planet 2UranusGiant Planet (Gas) 3CeresAsteroid 4ErisKuiper Belt Object 6Makemake (2005 FY9)Kuiper Belt Object 5VestaAsteroid 7JupiterGiant Planet (Gas) 8PlutoKuiper Belt Object 9EarthRocky Planet 10SaturnGiant Planet (Gas) 11HygeiaAsteroid 12Haumea (2003 EL61)Kuiper Belt Object 13MercuryRocky Planet 14NeptuneGiant Planet (Gas) 15MarsRocky Planet 16PallasAsteroid

23. Sun Rocky Planets Asteroid Belt Giant Planets Kuiper Belt Oort Cloud The 21 st Century Solar System

24. Another way to think about it… A model based on composition: Rock Rock w/some Ice Gaseous Ice w/some rock Inner/Rocky Planets (Mercury, Venus, Earth, Mars) Asteroids Outer/Giant Planets (Jupiter, Saturn, Uranus, Neptune) Kuiper Belt Objects

25. Activity Resources Introducing the Solar System/Background Building Solar System Q & As Science Content Reading – Star Witness News Reinforcement Online Exploration: Solar System Trading Cards Graphic Organizer: Comparison of rocky and gas planets Activity Fast Facts WorldWide Telescope Misconceptions Solar System Myths vs. Realities