A nonrenewable resource formed from the remains of prehistoric plants and animals

A push or pull that causes an object to move, stop or change direction

A force that pulls objects towards  each other

the place in an ecosystem where an organism lives

Water that percolates or drains through soil and rocks and collects in underground reservoirs

An inherited characteristic determined by the combination of genes from the parent organisms

The process by which remains of organisms are preserved as fossils

A period of time lasting 24 hours, the amount of time it takes Earth to make one complete rotation on its axis

Organisms that break down dead matter