Science Midterm

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Across
  1. 2. System used to arrange elements.
  2. 4. A type of boundary in which the plates slide past each other.
  3. 5. distance traveled over a period of time.
  4. 7. Basic unit of a chemical element.
  5. 9. A process in which broken down rocks are carried away.
  6. 11. Negative subatomic particle that orbits the nucleus.
  7. 14. A boundary which borders Tectonic Plates.
  8. 16. The use of Contour lines and elevation to make a map of the Earth.
  9. 18. A type of boundary in which the plates move away from each other.
  10. 21. Small region that contains Protons and Neutrons.
  11. 22. Positive subatomic particle.
Down
  1. 1. A change in speed or direction.
  2. 3. a change in which a substances atoms are rearranged.
  3. 6. A process in which sediment builds up to make land.
  4. 8. Speed + direction.
  5. 10. Breaking down of rocks by weather.
  6. 12. Neutral subatomic particle.
  7. 13. Element that is a good conductor of heat and electricity, is on the left staircase of the periodic table.
  8. 15. A type of boundary in which the plates push against each other.
  9. 17. A change in a substance that only affects its size, shape, or state of matter.
  10. 19. Element that Does not conduct heat nor electricity, found on the right of the periodic table (gases, liquids).
  11. 20. Element with mixed properties with metals and non-metals, in the staircase of the periodic table.