1. VOCABULARY LESSON 7

2.  A metal formed by mixing two other metals or by combining a metal and a nonmetal. ALLOY

3.  Capable of floating in a liquid  Not easily depressed; cheerful  buoyancy (noun) BUOYANT

4.  Related to the sky or heavens  Heavenly or divine CELESTIAL

5.  To change from a liquid to a solid or nearly a solid mass COAGULATE

6.  Capable of catching fire;inflammable  Easily excited; quick to anger  combustion (noun) COMBUSTIBLE

9.  A large destructive fire CONFLAGRATION

10.  Cutting something apart to examine  A detailed analysis or examination  dissect (verb) DISSECTION

11.  To treat or purify a liquid by heating it until it forms a vapor and then cooling it so that it returns to liquid form.  distillation (noun) DISTILL

13.  The science of dealing with atmospheric conditions, especially weather.  meteorological (adj.)  meteorologist (noun) METEOROLOGY

15.  To caused to be thoroughly soaked; fill to capacity.  saturated (adj.)  saturation (noun) SATURATE