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Geologic Time Scale

Geologic Time Scale

Assessment

Presentation

Science

7th Grade

Practice Problem

Easy

NGSS
MS-ESS1-4, MS-LS4-1, MS-ESS2-3

+1

Standards-aligned

Created by

T Harker

Used 1+ times

FREE Resource

7 Slides • 11 Questions

1

media

2

Reorder

Place the following in order from oldest to youngest.

Hadean

Archean

Proterozoic

Paleozoic

Mesozoic

1
2
3
4
5

3

Fill in the Blank

Type answer...

4

media

5

Open Ended

How do scientists organize Earth’s history and what evidence do they use?

6

media

7

Multiple Select

Use the time scale to identify the period in which each organism pictured below lived.

1

Cambrian

2

Ordovician

3

Silurian

4

Devonian

8

media

9

Multiple Choice

What do fossilized cyanobacteria from about 3.5 billion years ago indicate?

1

They indicate the presence of dinosaurs

2

They provide evidence of single-celled organisms

3

They show the evolution of mammals

4

They suggest a volcanic eruption

10

Multiple Choice

What evidence do limestone and shale from Kentucky and Indiana provide about the Silurian period?

1

They indicate a volcanic eruption

2

They suggest a shallow sea covered much of North America

3

They show the presence of dinosaurs

4

They provide evidence of glacial activity

11

media

12

Multiple Choice

Question image

90% of Earth’s history occurred during which era?

1

Precambrian

2

Paleozoic

3

Mesozoic

4

Cenozoic

13

Multiple Choice

Question image

Which era is the most recent, the one that we are currently in?

1

Mesozoic

2

Paleozoic

3

Cenozoic

4

Precambrian

14

media

15

Multiple Choice

Question image

Scientists have found large groups of fossils of marine organisms on mountaintops. What does this tell scientists about the past?

1

That these rocks must have been moved there by some one else.

2

That these rocks were always above the surface of an ocean

3

That these organisms left the ocean and climbed to the top of an inland mountain to die

4

That these rocks were once below the surface of an ocean

16

Multiple Choice

Question image

Order the divisions of geologic time from the longest to the shortest.

1

eras, eons, periods

2

periods, eras, eons

3

periods, eons, eras

4
  1. eons, eras, periods

17

media

18

Multiple Choice

What is the primary evidence used to study the Precambrian Era?

1

Fossils

2

Radiometric Dating

3

Ice Cores

4

Tree Rings

media

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