science

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Across
  1. 1. the distance from the top or surface to the bottom of something.
  2. 5. raise to a higher position or level
  3. 9. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
  4. 12. consisting of two equal, identical, or similar parts or things
  5. 13. degree of consistency measured by the quantity of mass per unit volume.
  6. 14. Spatans
  7. 15. a substance that takes part in and undergoes change during a reaction
  8. 17. an article or substance that is manufactured or refined for sale.
  9. 18. only one; not one of several
Down
  1. 2. the process of equating one thing with another
  2. 3. consisting of two equal, identical, or similar parts or things
  3. 4. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  4. 6. the combination of ideas to form a theory or system
  5. 7. he ability or tendency to float in water or air or some other fluid
  6. 8. the state or process of rotting; decay.
  7. 10. a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
  8. 11. (of a reaction or process) accompanied by or requiring the absorption of hea
  9. 16. the amount of atoms that are in exactly 12 grams of carbon-12,