6Th Grade Science--Plate Tectonics/geology Test

Front 1

Crust

Back 1

the outermost layer of the earth
(less than 1%)

Front 2

Mantle

Back 2

the layer between the crust and the core
(66%)

Front 3

Core

Back 3

the innermost layer below the mantle
(33%)

Front 4

Lithosphere

Back 4

the rigid out layer of the crust

Front 5

Asthenosphere

Back 5

soft layer of rock on which the Lithosphere moves

Front 6

Mesosphere

Back 6

middle sphere between the Asthenosphere and the Outer Core

Front 7

Outer Core

Back 7

liquid rock layer

Front 8

Inner Core

Back 8

solid layer of rock

Front 9

Tectonic Plates

Back 9

the earth is divided into plates that move on top of the Asthenosphere

Front 10

Oceanic Crust

Back 10

newer more dense crust formed in the ocean

Front 11

Continental Crust

Back 11

older less dense crust found where the continents are located

Front 12

Pangaea

Back 12

one giant super continent before the plates moved apart from one another

Front 13

Who discovered it and when?

Back 13

Alfred Wegner-German Scientist
Early 1900's

Front 14

Proof Of Wegner's Theory

Back 14

1-The coastlines fit together like puzzle pieces
2-Fossil Evidence-Animal and plant fossilsmatched on different continents
3-Rock Evidence-ROCKS DON'T SWIM!!!
4-Glaciers left marks on mountains as they moved

Front 15

Continental Drift

Back 15

a theory by Alfred Wegner that states that continnent drift apaprt from one another (this is only 1/2 true)

Front 16

Sea-floor spreading

Back 16

the process where new crust is formed in the Mid-Ocean Ridge(mountain chain underwater)and older crust is pushed away

Front 17

Mid-Atlantic Ridge

Back 17

Underwater mountains in the Atlantic Ocean

Front 18

The Theory of Plate Tectonics

Back 18

The theory of Plate Tectonics is that the plates are divided and move on the surdace of the Earth's Lithosphere

Front 19

3 Theories as to why the Plates Move

Back 19

1-Ridge Push-Oceanic Plates slide down into the Lithosphere and Asthenosphere boundary
2-Convection-hot material rises and cools once it becomes more dense and sinks
3-Slab Pull-Oceanic Plates are more dense and sink causing "Slab Pull"

Front 20

Convergent Boundary

Back 20

When plates collide
-----> <------
(in result-a strong earthquake)

Front 21

Divergent Boundary

Back 21

When plates move apart
<----- ----->
(in result-a weak earthquake)

Front 22

Transform Boundary

Back 22

When plates slide
(in result-a stronger earthquake)

Front 23

Sea-floor spreading

Back 23

the process where new crust is formed in the Mid-Ocean Ridge(mountain chain underwater)and older crust is pushed away

Front 24

Mid-Atlantic Ridge

Back 24

Underwater mountains in the Atlantic Ocean

Front 25

The Theory of Plate Tectonics

Back 25

The theory of Plate Tectonics is that the plates are divided and move on the surdace of the Earth's Lithosphere

Front 26

3 Theories as to why the Plates Move

Back 26

1-Ridge Push-Oceanic Plates slide down into the Lithosphere and Asthenosphere boundary
2-Convection-hot material rises and cools once it becomes more dense and sinks
3-Slab Pull-Oceanic Plates are more dense and sink causing "Slab Pull"

Front 27

Convergent Boundary

Back 27

When plates collide
-----> <------
(in result-a strong earthquake)

Front 28

Divergent Boundary

Back 28

When plates move apart
<----- ----->
(in result-a weak earthquake)

Front 29

Transform Boundary

Back 29

When plates slide
(in result-a stronger earthquake)