Match the following. Match the items in the left column to the items in the right column.

1. geology

2. biology

3. molecular clock

4. sediment

5. chemistry
terms

a branch of physical science that focuses on composition, structure, properties and change of matter

dirt, pieces of rock, and the remains of living things at the bottom of oceans, seas, and lakes

a branch of earth science that focuses on the study of the rock

the study of life

a technique for estimating the age of species by comparing molecular differences between species