Earth Science Unit 1 & 2 Review

Edit Answers
12345678910111213141516171819202122232425262728293031323334
Across
  1. 4. an instrument used to record P-Waves and S-Waves.
  2. 6. the Milky Way's galaxy type.
  3. 7. what is viewed through a spectroscope when celestial objects move towards the observer.
  4. 9. tectonic plate boundary where 2 plates slide past each other.
  5. 11. phenomenon that shows evidence that the universe is moving away in all directions.
  6. 12. type of planet that is smaller and more dense.
  7. 13. tectonic plate boundary where 2 plates move apart.
  8. 15. plant fossil found in Antarctica that was used to prove the Continental Drift theory.
  9. 17. volcanic activity occurring under earth's crust that burns through and often forms islands.
  10. 19. most accepted theory of how the universe formed.
  11. 20. plastic mantle - where convection currents are found.
  12. 23. second wave received by a seismograph station after an earthquake occurs.
  13. 26. process by which stars produce energy.
  14. 29. what is viewed through a spectroscope when celestial objects move away from the observer.
  15. 34. method for determining the volume of an irregular-shaped object.
Down
  1. 1. the amount of particles per amount of space.
  2. 2. type of planet that is larger and less dense.
  3. 3. when a tectonic plate moves underneath another plate.
  4. 5. amount of particles within an object.
  5. 7. evidence that the universe originated at a single point.
  6. 8. amount of space that an object takes up within the universe.
  7. 10. deep depression feature formed from the convergence of 2 plates.
  8. 14. the name of the group of galaxies that the Milky Way belongs to.
  9. 16. formed from the divergence of 2 oceanic plates.
  10. 18. very fast moving cloud of hot gas and matter being released by a volcano.
  11. 21. areas of the Sun that are effected by magnetism in a cyclic pattern every 11 years.
  12. 22. the location on Earth's surface where an earthquake occured.
  13. 24. tectonic plate boundary where 2 plates move towards each other.
  14. 25. deep depression feature formed from the convergence of 2 plates.
  15. 27. theory produced by Alfred Wegener.
  16. 28. first wave received by a seismograph station after an earthquake occurs.
  17. 30. 90% of stars in the universe exist as this type.
  18. 31. the stage in stellar evolution that follows a super giant star.
  19. 32. earth's top most layer.
  20. 33. element with atomic mass of 1 that is used in nuclear fusion.