Chemistry (2)

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 7. Any of several complex proteins that are produced by cells and act as catalysts in specific (plural) (7)
  2. 8. Substance used in or made by chemistry (8)
  3. 10. The simplest structural unit of an element or compound (plural) (9)
  4. 11. A particle that is electrically charged (plural) (4)
  5. 12. The branch of geology studying the folding and faulting of the earth's crust (14)
  6. 14. The power to do work or make things move (6)
  7. 15. Any of several chemical elements that are usually shiny solids that conduct heat or electricity (plural) (6)
  8. 16. Hard piece of stone (plural) (5)

Down

  1. 1. A process in which one or more substances are changed into others (8)
  2. 2. A tabular arrangement of the chemical elements according to atomic number as based on the ___ (13)
  3. 3. The act of passing from one state or place to the next (10)
  4. 4. A substance formed by chemical union of two or more elements or ingredients in definite proportion (plural) (9)
  5. 5. Any of various water-soluble compounds having a sour taste and capable of turning litmus red (plural) (5)
  6. 6. An abstract part of something (plural) (8)
  7. 9. Any of the monovalent ___ of group I of the periodic table (plural) (12)
  8. 13. The smallest component of an element having the chemical properties of the element (plural) (5)