Fossils and Rock Layers Flashcard

Front

What is the oldest layer of rock?

Back

The oldest layer of rock is the one located at the bottom of a rock formation.

Front

What can earthquakes and erosion do to layers of rock?

Back

Earthquakes and erosion can move layers of rock.

Front

What type of animals were trilobites?

Back

Trilobites were ancient marine animals that existed before dinosaurs.

Front

What is a true form fossil?

Back

A true form fossil is a type of fossil where the remains of a plant or animal are preserved in their original form, often found in ice, tar, or amber.

Front

What happens when a plant or animal dies near water?

Back

When a plant or animal dies near water and falls into the sand or silt at the bottom, it can become a fossil.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of ancient plants and animals.

Front

What is the significance of rock layers in understanding Earth's history?

Back

Rock layers help scientists understand the chronological order of events in Earth's history.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another.

Front

What is a mold fossil?

Back

A mold fossil is a type of fossil that forms when an organism leaves an impression in sediment.

Front

What is a cast fossil?

Back

A cast fossil is created when a mold fossil is filled with minerals that harden into rock.