Rock Layers (Geologic Time)

Front

Rock made from sediment compacted by the weight of sediment layers above are called __________ rock.

Back

sedimentary rock

Front

The breaking down of rocks into smaller pieces is called _________.

Back

weathering

Front

Paleontologists study ______.

Back

fossils

Front

Scientists use ______ to help figure out geologic time.

Back

rock layers

Front

________ are evidence of past life.

Back

Fossils

Front

The process by which rocks are worn away by wind, water, or ice is called __________.

Back

erosion

Front

The layers of rock that are formed over time are known as __________.

Back

strata

Front

The study of the Earth's physical structure and substance is called __________.

Back

geology

Front

The age of rocks and fossils can be determined using __________ dating.

Back

radiometric dating

Front

The theory that explains the movement of the Earth's plates is called __________.

Back

plate tectonics