Sciene

2. consisting of two equal, identical, or similar parts or things.
4. the best high school in existance
5. a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
6. an article or substance that is manufactured or refined for sale.
10. the ability or tendency to float in water or air or some other fluid.
11. the distance from the top or surface to the bottom of something.
12. host of the PBS children's science show _____ ____ the Science Guy
14. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
16. the degree of compactness of a substance.
18. the process of equating one thing with another.
19. the production of chemical compounds by reaction from simpler materials.
21. a multiplier or factor that measures some property.

1. the state or process of rotting; decay.
3. (of a reaction or process) accompanied by or requiring the absorption of heat.
7. a substance that takes part in and undergoes change during a reaction
8. the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12
9. only one; not one of several.
13. raise to a higher position or level.
15. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
17. (of a reaction or process) accompanied by the release of heat.
20. relating to chemistry, or the interactions of substances as studied in chemistry.