4th Grade-Ch 18 Lesson 2 What are the inner planets

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4th Grade-Ch 18 Lesson 2 What are the inner planets

  1. 1. Ch. 18 Lesson 2 What are the inner planets?
  2. 2. The Inner Planets
  3. 3. Mercury <ul><li>Little bigger than Earth’s moon </li></ul>
  4. 4. <ul><li>covered w/ craters </li></ul>
  5. 5. <ul><li>No atmosphere- very hot during day & cold @ night </li></ul>
  6. 6. <ul><li>Visited by Mariner 10 space probe </li></ul><ul><li>no moons </li></ul>
  7. 7. Venus <ul><li>Thick atmosphere of sulfuric acid clouds </li></ul><ul><li>No moons </li></ul>
  8. 8. Venus <ul><li>About same size as Earth </li></ul><ul><li>Brightest object in night sky </li></ul>
  9. 9. Earth <ul><li>only planet w/ life & liquid water </li></ul><ul><li>protected by atmosphere </li></ul><ul><li>1 moon </li></ul>
  10. 10. Mars <ul><li>“ Red Planet”- iron oxide </li></ul><ul><li>2 moons- Phobos & Deimos </li></ul>
  11. 11. <ul><li>2 moons- Phobos & Deimos </li></ul>
  12. 12. Mars rovers <ul><li>Sojourner </li></ul><ul><li>Viking 1 </li></ul><ul><li>Spirit & Opportunity </li></ul>
  13. 13. <ul><li>many volcanoes </li></ul>Mars
  14. 14. Name that inner planet
  15. 15. no moons
  16. 16. only planet with life
  17. 17. “ Red Planet”
  18. 18. about same size as Earth
  19. 19. 2 moons
  20. 20. poisonous clouds
  21. 21. no atmosphere
  22. 22. brightest object in night sky
  23. 23. similar to Earth’s moon
  24. 24. visited by rovers
  25. 25. covered with craters
  26. 26. liquid water
  27. 27. covered with iron oxide

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