7th Grade Semester 1 Review

Which fossil would you expect to see in younger rock layers?

• trilobites

• dinosaurs

Tags

NGSS.MS-ESS1-4

Mass extinctions have happened more than once in the geological history of Earth.

• True

• False

Tags

NGSS.MS-LS4-1

Trilobites and dinosaurs were both victims of mass extinction events.

• True

• False

Tags

NGSS.MS-LS4-1

Geologists organized the geologic time scale based on _____.

• rock record

• evenly spaced time segments

• fossil records

• both rock and fossil records

Tags

NGSS.MS-ESS1-4

What type of unconformity is demonstrated in the photo?

• angular unconformity

• non conformity

• disconformity

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which index fossil is shown in the photo?

• Echinoid

• Grapinoid

• Trilobite

• Brachiopod

Tags

NGSS.MS-LS4-1

Layer D is _______ layer C.

• older than

• younger than

• the same age as

Tags

NGSS.MS-ESS1-4

Which layer is the youngest layer?

• Layer D

• Layer C

• Layer E

• Layer A

Tags

NGSS.MS-ESS1-4

According to the law of _________, if one rock contains pieces of another rock, the rock containing the pieces is younger than the pieces.

• inclusions

• lateral continuity

• original horizontality

• superposition

Index fossils are useful to geologists if the fossils ____.

• have lived over a short period of time

• are not easily recognized

• are not widely distributed geographically

• are scarce