Boiling, the process of changing a liquid into a vapor by the application of heat. See more »

Decay, the breaking down, or decomposing, of dead tissue or organic matter into simpler chemical compounds. See more »

Enzymes, complex proteins produced by all living things. They play an important role in nearly all the chemical reactions that take place in organisms by acting as catalysts. See more »

Explosive, a substance that will burn up or decompose almost instantly, producing intense heat and a large volume of expanding gas. See more »

Gas, a fuel. Natural gas is taken from underground deposits where it has been trapped for centuries. See more »

Glass, a hard, brittle, and usually transparent material. As a scientific term, the word glass is often used to refer to any rigid substance that is amorphous (not made up of crystals), with the exception of plastics and certain other substances containing carbon. See more »

Insulation, the use of resistant or absorptive materials to retard or prevent the passage of heat, sound, mechanical vibration, electricity, or radiation. See more »

Microscope, an instrument used to obtain enlarged images of tiny objects or minute details of objects. See more »

Chemistry, the science of the composition of matter, its properties and characteristics, and the changes it undergoes. See more »

Solution, a mixture of two or more substances in which the particles of each substance are of molecular or atomic size. See more »