Unit 2 Science

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Across
  1. 6. Something that is suitable or good enough live on.
  2. 8. Which planet are scientists researching to see if people can live there or not?
  3. 9. What do asteroids turn in to when they reach Earth’s atmosphere?
  4. 12. What doesn’t change when you are in different planets?
  5. 14. Which geographic feature happens when two plates slide past each other?
  6. 15. when two plates move away from each other
  7. 16. Outer planets are ————- than inner planets.
  8. 17. The second closest planet to the sun.
  9. 19. Inner planets are ————- than outer planets.
  10. 20. the measure of the effect of gravity on an object.
Down
  1. 1. Planets Do outer planets or inner planets rotate faster?
  2. 2. Who was the first person to discover gravity?
  3. 3. Who expanded on Isaac Newton’s ideas of gravity?
  4. 4. when two plates slide past each other
  5. 5. The supercontinent before all the continents separated.
  6. 7. when two plates collide with each other
  7. 10. small metallic objects, that are to small to be planets, but orbit the sun.
  8. 11. The biggest planet in the solar system.
  9. 13. What is the only planet that can support life?
  10. 18. a force of attraction due to their masses