Rock Layers (Geologic Time)

Front

Scientists use ______ dating to figure out the exact age of something.

Back

absolute

Front

The geologic time scale represents Earth's ________ year history.

Back

4.6 billion

Front

Paleontologists study ______.

Back

fossils

Front

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

Back

weathering

Front

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

Back

sedimentary

Front

Scientists use ______ to help figure out geologic time.

Back

rock layers

Front

When sediment is moved around by wind or water it is called ________.

Back

erosion

Front

A ________ is a scientist that studies the composition of the Earth, including rock layers.

Back

geologist

Front

________ are evidence of past life.

Back

Fossils

Front

Dinosaurs lived in the ___________ era.

Back

Mesozoic