Geologic Time Scale

Front 1

How many eras in the geologic time scale ?

Back 1

4

Front 2

Name the era 4.6 billion years ago.

Back 2

Precambrian

Front 3

Precambrian era was ___________ years ago

Back 3

4.6 billion

Front 4

Planet earth formed in which era ?

Back 4

Precambrian

Front 5

Was there any life on earth in the Precambrian Era? Why or Why not?

Back 5

No. There was no atmosphere, so no life could be there.

Front 6

During the Precambrian era, massive ________ activity and ________ forming took place

Back 6

tectonic , continent

Front 7

What was the first rock that formed in the Precambrian era?

Back 7

Igneous Rock.

Front 8

What is the oldest land form in Canada?

Back 8

The Canadian Shield

Front 9

What was the first life on earth?

Back 9

Single celled life forms

Front 10

Later in the Precambrian era, ______-celled organisms form

Back 10

multi-celled

Front 11

Which super continent is formed in the Paleozoic era?

Back 11

Pangaea

Front 12

What was created in the Paleozoic era ?

Back 12

oceans and seas

Front 13

Which mountains are formed in the Paleozoic Era ?

Back 13

Appalachians mountain

Front 14

Plant life appears on Earth in which era ?

Back 14

Paleozoic Era

Front 15

Name the eras in the geologic time scale ?

Back 15

Precambrian Era
Paleozoic Era
Mesozoic Era
Cenozoic Era

Front 16

Which complex life form is first developed in the Paleozoic Era?

Back 16

Shellfish and molluscs

Front 17

Amphibians evolved during which era ?

Back 17

Paleozoic Era.

Front 18

Name the era 540 million years ago.

Back 18

Paleozoic era

Front 19

Name the life forms that evolved in the Paleozoic era.

Back 19

1. Complex life forms like shellfish and molluscs
2. Plant Life
3. Primitive fish
4. Insects
5. Amphibians evolve

Front 20

Name the geographical features that evolved in the Paleozoic era

Back 20

1. Super Continent Pangaea
2. Appalachian mountains

Front 21

Dinosaurs roamed the earth in which era?

Back 21

Mesozoic Era.

Front 22

Name the era 248 million years ago.

Back 22

Mesozoic Era

Front 23

Mesozoic Era was ________ million years ago

Back 23

248

Front 24

Name the lifeforms of the Mesozoic Era

Back 24

Dinosaurs, birds, primitive mammals develop towards the end of the era

Front 25

Name the geographical features that developed in the Mesozoic Era

Back 25

1. Western Cordillera is formed.
2. Pangea splits into Laurasia and Gondwana island
3. Interior Plains is covered by vast inland sea.
4. Continents start to drift towards modern positions.

Front 26

Name the era 65 million years ago.

Back 26

Cenozoic Era

Front 27

Cenozoic Era was form ________ million years ago.

Back 27

65

Front 28

Name the lifeforms of the Cenozoic Era

Back 28

1. First mammals and primates develop
2. first hominids appear
3. First Homo Sapiens evolve

Front 29

Name the geographical features during the Cenozoic Era

Back 29

1. Inland seas dry up and creates the Interior Plains
2. Continents take their modern shapes and positions.

Front 30

Define Continental Drift or plate tectonics

Back 30

Movement of the earth's plates

Front 31

Mountain building occurred during which period ?

Back 31

Paleozoic Era.

Front 32

How many processes lead to the development of mountains ?

Back 32

3 - Faulting, Folding and volcanoes

Front 33

Name to the mountains formed during Mesozoic era.

Back 33

The Rockies

Front 34

The Western Cordillera is made up of which mountains

Back 34

The Rockies,
Coast Range
Cascades
Sierra Nevada
Sierra Madre

Front 35

Canadian shield is made up which rock ?

Back 35

Igneous Rock

Front 36

Western Cordillera is made up of which rocks ?

Back 36

Igneous and sedimentary rocks.

Front 37

Name the various drainage systems of North America

Back 37

1. Great Lakes watershed
2. Missouri river watershed
3. Mackenzie river system
4. Rio Grande River System
5. Columbia River system
6. Saskatchewan/Nelson river system

Front 38

Era of the mammals

Back 38

Cenozoic

Front 39

Name the person who gave us the Theory of Continental Drift

Back 39

Alfred Wegener, A German scientist

Front 40

What is the theory of Continental Drift ?

Back 40

According to Wegener, three hundred million years back all the land masses collided to form a single super continent Pangaea. About two hundred million years ago this super continent broke up and the pieces floated out to their present locations.

Front 41

Which theory supports Wegener's Continental Drift Theory?

Back 41

Theory of Plate Tectonics presented by J Tuzo Wilson, a Canadian Scientist.

Front 42

What is the Theory of Plate Tectonics

Back 42

The earth's crust is divided into about 20 tectonic plates which are floating on a bed of hot molten rock. The convection currents of this rock helps the plates to move or float.

Front 43

How are convection currents caused ?

Back 43

Convection currents are caused by the uneven temperatures inside the earth.