Unit Test Reviewer(2nd Quarter)

Front

What can be concluded if a seashell is found high on a mountain?

Back

It does not necessarily mean that fish lived in the mountains; this statement is FALSE.

Front

What type of fossil forms when sediments bury an organism and then change into rock, leaving a cavity in the shape of the organism?

Back

Mold

Front

How do most fossils form?

Back

Most fossils form when organisms die and become buried in sediments.

Front

What is a mass extinction?

Back

The extinction of many types of organisms at the same time.

Front

Order the layers from oldest to youngest: J, K, M, L.

Back

JKML

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of ancient organisms.

Front

What is sedimentary rock?

Back

Rock formed from the accumulation and compaction of sediments.

Front

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

Back

A mold is a cavity left in sediment after an organism decays, while a cast is a solid copy of the organism that fills the mold.

Front

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

Back

Fossils provide evidence of past life and help scientists understand the evolution of species.

Front

What are trace fossils?

Back

Fossils that record the activity of organisms, such as footprints or burrows.