Science Crossword Puzzle

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Across
  1. 2. rocky, metallic or icy with no atmosphere
  2. 7. is the third closest planet to the sun
  3. 10. “Harder to move” is a property of matter called _______
  4. 12. force pushes towards the center of an object
  5. 13. the amount of space an object takes up
  6. 14. system system used in science
  7. 15. formed when magma cools and hardens
  8. 18. rock altered by heat and pressure
  9. 19. the amount of matter in an object
Down
  1. 1. broken down by weathering/ tiny bits of rocks
  2. 3. study of position and relation of strata
  3. 4. Things at rest stay at _____
  4. 5. continuity layers of sediment originally laterally
  5. 6. two forces thrusting in opposite directions
  6. 8. force that pulls away from the center
  7. 9. frozen pieces of the solar system made out of dust, rock, and ice
  8. 11. age the age of the rock compared to other rocks
  9. 16. Melting metamorphic rock turns into________
  10. 17. a rock layer is older then any rock or fault that cuts through it
  11. 18. is the planet closest to the sun