Science Midterm

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Across
  1. 2. The __________ of Earth takes one day.
  2. 3. __________ are pieces of sand, rock, and other materials.
  3. 5. The revolution of the Moon around the Earth takes one __________.
  4. 7. __________ is the supercontinent containing all the continents.
  5. 9. An object is in __________ when it changes its position.
  6. 10. __________ is how heavy or light an object is for its size.
  7. 12. Seafloor __________ occurs when magma erupts from the Mid-Atlantic ridge and cools and hardens into a new rock layer.
  8. 14. __________ currents occur when hot magma rises and cool magma sinks over and over.
  9. 16. When any type of rock is melted, it becomes __________.
  10. 18. __________ is the breaking down of rocks.
  11. 20. Seafloor spreading occurs at the Mid-Atlantic __________.
  12. 23. The __________ is the hottest and densest layer of the Earth.
  13. 25. The change of speed is called __________.
  14. 26. __________ boundaries occur when plates come together.
  15. 27. The greater the mass of an object, the less acceleration an object has in motion. The greater the force an object is given, the more acceleration an object has in motion. This is called Newton’s __________ law.
  16. 29. Sedimentary rocks are formed from cementation and __________ of sediments.
  17. 32. Divergent boundaries can cause __________ spreading to happen.
  18. 34. For every action, there is an equal and opposite reaction. This is called Newton’s __________ law.
  19. 35. The __________ is the layer that consists of magma.
  20. 36. Subduction occurs at the __________.
Down
  1. 1. Convergent boundaries can cause __________ to form.
  2. 4. __________ boundaries occur when plates move apart.
  3. 6. __________ boundaries occur when plates slide past each other.
  4. 8. Earth has seasons because of its __________.
  5. 11. __________ rocks are formed from magma cooling and hardening.
  6. 13. The __________ of the Earth around the Sun takes one year.
  7. 15. When a hemisphere receives more direct sunlight, it is __________.
  8. 17. __________ rocks are formed from heat and pressure.
  9. 19. Transform boundaries can cause __________ to occur.
  10. 21. __________ occurs when the old rock layer is pushed back down into the mantle and melted into magma.
  11. 22. __________ drift theory is the theory that the continents once fit together but broke apart and slowly drifted apart.
  12. 24. __________ is the movement of weathered rocks.
  13. 28. If an object is in motion, it stays in motion until an unbalanced force acts on it. If an object is at rest, it stays at rest until an unbalanced force acts on it. This is called Newton’s __________ law.
  14. 30. Convection __________ occur in the mantle.
  15. 31. The __________ is the layer that is made up of rock.
  16. 33. When a hemisphere receives more indirect sunlight, it is __________.