CTA Term 3

The image shows two samples of rocks taken from a region. The trilobite index fossil is labeled. Using the trilobite index fossil available in the layers, which rock layer is the oldest?

• layer A

• layer D

• layer E

• layer G

Tags

NGSS.MS-ESS1-4

Fossils of more than 500 trilobite species have been found in western Utah. Trilobites were marine organisms that lived millions of years ago. Most trilobites live on the ocean floor, but some were also capable of swimming. Which inference is best based upon the given information?

• A shallow inland sea once covered the western part of Utah.

• Wind currents carried trilobite eggs to the western part of Utah

• Some trilobites migrated over land to the western part of Utah

• An ancient people moved the trilobite fossils from the coast to western Utah

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What must be true in order for a species to serve as an index fossil?

• The species must have only lived in a small geographic area.

• The species must have only lived for a short period of geologic time.

• The species must not be extinct.

• The species must look similar to several other species.

What information can be learned about a fossil using the Law of Superposition?

• the age of the fossil compared to other fossils

• the species to which the fossil belongs

• the diet of the organisms from which the fossil was formed

• the behaviors of the organism from which the fossil was formed

Tags

NGSS.MS-ESS1-4

How do fossils form?

• Most fossils form when living things die and are buried by sediments.

• Most fossils form when living things are birth and die under magma.

• Most fossils form when nonliving things die and are buried by mold fossils.

• Most fossils form because of freezing temperatures.

What are the different kinds of fossils?

• plane fossils, cast fossils, cool fossils, and amber fossils

• magma, amber, sedimentary, and gold fossils

• petrified fossils, carbon films, mold fossils, and trace fossils

• trace fossils, heat fossils, bone fossils, and carrying fossils

Tags

NGSS.MS-LS4-1

Which type of fossil is an imprint of the passing by of an organism?

• fossil resin

• mold fossil

• trace fossil

• cast fossil

What type of scientist studies fossils?

• Geoscientist

• Geologist

• Archaeologist

• Paleontologist

Tags

NGSS.MS-LS4-1

What type of fossils are complete dinosaur skeletons composed of?

• mold fossil

• body fossil

• cast fossil

• trace fossil

What is petrified wood?

• wood turned rotten

• wood turned to stone

• wood with insects

• wood with fossils inside of it