The surface of Earth changes due to weathering.
The surface of Earth changes due to erosion and deposition.
The total amount of matter is conserved when it undergoes a change.
Energy can be transformed from one form to another or can be transferred from one location to another.
Changes in an organism’s environment are sometimes beneficial to its survival and sometimes harmful.
Fossils can be compared to one another and to present day organisms according to their similarities and differences.