2. Hosted by Mrs. Brady

3. 100 200 400 300 400 The SunInner Planets Outer Planets Extra- Terrestrial 300 200 400 200 100 500 100

4. Row 1, Col 1 Area of the sun where nuclear fusion occurs. What is the core?

5. 1,2 The 3 characteristics that inner planets all have in common. What are small, dense, and rocky surfaces?

6. 1,3 The four outer planets known as gas giants. What are Jupiter, Saturn, Uranus, and Neptune?

7. 1,4 Comets are found in two distinct regions. What are the Kuiper Belt and Oort Cloud?

8. 2,1 Copernicus was able to confirm this model and work out the arrangement of the planets and how the moved. What is the heliocentric system?

9. 2,2 Unique in having liquid water at its surface. What is Earth?

10. 2,3 One of Jupiter’s moons that may have liquid water. What is Europa?

11. 2,4 Revolves around the sun between the orbits of Mars and Jupiter. What is the asteroid belt?

12. 3,1 The outer most layer of the sun’s interior. What is the convection zone?

13. 3,2 Smallest terrestrial planet and closet to the sun. What is Mercury?

14. 3,3 Titan is the largest moon of this planet. What is Saturn?

15. 3,4 When a meteroid enters Earth’s atmosphere, friction with the air creates heat and produces a streak of light. What is a meteor?

16. 4,1 The 3 layers of the sun’s atmosphere. What are the photosphere, chromosphere, and corona?

17. 4,2 Density and intenal structure is similar to Earth’s. Sometimes called “Earth’s twin”. What is Venus?

18. 4,3 Unique to Uranus’s axis of rotation. What is 90 degrees from the vertical?

19. 4,4 The “Goldilocks” Conditions for living things to survive. What are liquid water, suitable temperature ranges, and atmosphere?

20. 5,1 Occur near Earth’s poles when particles of solar wind strike gas molecules in Earth’s upper atmosphere. What are auroras?

21. 5,2 Reason that Mars has a reddish color. What is iron-rich rock?

22. 5,3 Neptune was discovered due to this prediction. What is a mathematical prediction?

23. 5,4 Made up of one or more cells, take in energy to grow and develop, reproduce, and give off waste products. What are living things on Earth?