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

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

Back

erosion

Front

Dinosaurs lived in the ___________ era.

Back

Mesozoic

Front

Paleontologists study ______.

Back

fossils

Front

The process by which rocks are formed from cooled magma is called __________.

Back

igneous rock formation

Front

The geological time scale is divided into __________, __________, and __________.

Back

eras, periods, epochs

Front

The study of Earth's physical structure and substance is known as __________.

Back

geology

Front

The layer of Earth where we find rocks and minerals is called the __________.

Back

lithosphere

Front

The gradual movement of tectonic plates is known as __________.

Back

plate tectonics