Earth Science - Semester Review

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Across
  1. 1. the most distant object visible with the unaided eye
  2. 3. Jupiter, Saturn, Uranus, Neptune are ___
  3. 5. Galaxy formed when Milky Way crashes into the Andromeda Galaxy.
  4. 9. a small rocky body orbiting the sun
  5. 10. sixth planet from the Sun, has a large noticacable ring.
  6. 12. A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
  7. 14. A chunk of rock or dust in space
  8. 15. Small red terrestrial Planet.
  9. 19. largest planet, first gas giant in order from the sun
  10. 20. A meteoroid in Earth's atmosphere.
  11. 21. Dwarf planet in the asteroid belt.
  12. 24. Closest planet to the sun. smallest planet.
  13. 25. the process of becoming a fossil
  14. 27. A region just beyond neptune that contains many asteroids and dwarf planets.
  15. 29. sun, planets, and all the other objects that revolve around the sun
  16. 30. 8th planet from sun, blue color
  17. 32. Term for Sun
  18. 34. Orbits a star, has a sphere shape by gravity, dominates orbit.
  19. 35. particles with the same properties but opposite charge, not much known
  20. 37. actual remains of an organism
  21. 38. a spherical region that surrounds the solar system and creates the border of our solar system.
Down
  1. 2. Things that can become a fossil
  2. 4. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
  3. 6. a celestial body resembling a small planet but lacking criteria to be a planet.
  4. 7. Plant we live on
  5. 8. A meteoroid that has hit earth's surface.
  6. 11. A satellite that revolves around a planet.
  7. 13. Earth is 14___ years old
  8. 16. the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are founds
  9. 17. provide evidence of the activities of ancient organisms
  10. 18. 2nd planet from the sun
  11. 22. The star at the center of our solar system
  12. 23. Mercury, Venus, Earth, Mars
  13. 26. A galaxy that has arms of stars, dust and gas curving away from its center in a spiral motion.
  14. 28. compactness of a substance
  15. 31. 7th planet from the sun
  16. 33. Anything that has mass and takes up space
  17. 36. Way the name of our galaxy
  18. 37. The theory that the universe originated in a huge explosion that released all matter and energy.