F-J

Food Chain

An arrangement of the organisms of an ecological community according to the order of predation in which each uses the next, usually lower, member as a food source.

Force

An influence that if applied to a free body results chiefly in an acceleration of the body and sometimes in elastic deformation and other effects.

Fossil

A remnant, impression, or trace of an organism of past geologic ages that has been preserved in the earth's crust.

Gas

A fluid (such as air) that has neither independent shape nor volume, but tends to expand indefinitely.

Habitat

The place or environment where a plant, animal or other organism naturally or normally lives and grows.

Heat

The energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed.

Igneous

Formed by the solidification of magma.

Inherited

To receive from ancestors by genetic transmission.

Insulator

A material that is a poor conductor (as of electricity or heat).