Mixed Science Review

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Across
  1. 3. value that tells the number of protons in an element
  2. 4. transfer of heat through a medium but without the motion of the medium
  3. 8. a large cloudlike mass of gas and dust in space that may lead to the formation of a star
  4. 10. an explanation for some naturally occurring event developed from extensive observation, testing, and reasoning
  5. 11. a force that resists or opposes motion through direct contact
  6. 13. small bits of rock and dust that have been carried and deposited in the same location
  7. 14. organelle that contains green pigments and is responsible for photosynthesis
  8. 17. total of all pushes or pulls exerted on an object
  9. 19. type of rock that forms when another rock is subject to intense heat and pressure
  10. 20. substance that is being dissolved by another substance
Down
  1. 1. an organism in a food chain that obtains nutrients from other organisms
  2. 2. process by which rocks are broken into smaller pieces
  3. 5. the changing in direction of a wave after bouncing off the surface of an object
  4. 6. kingdom containing eukaryotic, heterotrophs with a cell wall
  5. 7. a type of plate boundary where two plates are pushed together
  6. 9. result of unbalanced forces acting on an object
  7. 12. alternate forms of a gene that an organism may have
  8. 15. an organism that can produce its own food from inorganic sources
  9. 16. two or more elements chemically combined to form a new substance
  10. 18. a type of mechanical energy associated with the motion of an object