Fossils and Geological Time

Front

What is the importance of studying fossils?

Back

Studying fossils provides information about how life and environmental conditions may have changed over time.

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NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Front

In which era did dinosaurs go extinct?

Back

Dinosaurs went extinct in the Mesozoic era.

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NGSS.MS-ESS1-4

Front

What type of fossil looks just like the body part of a once-living thing?

Back

A cast fossil looks just like the body part of a once-living thing.

Front

What is the term for the end of life for a group of organisms, usually a species?

Back

Extinction.

Tags

NGSS.MS-LS4-1

Front

Which rock layer in a geological diagram is typically the oldest?

Back

The bottom layer is usually the oldest.

Tags

NGSS.MS-ESS1-4

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Front

What is the difference between a cast and a mold fossil?

Back

A cast fossil is a replica of the organism, while a mold fossil is an impression left in the sediment.

Front

What does the term 'geological time scale' refer to?

Back

The geological time scale is a system of chronological dating that relates geological strata to time.

Tags

NGSS.MS-ESS1-4

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation of sediment, often containing fossils.

Tags

NGSS.MS-ESS2-1

Front

What is paleontology?

Back

Paleontology is the scientific study of the history of life on Earth through the examination of plant and animal fossils.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2