Science Test

Question 1

Divergent

Ocean to ocean

Answer 1

Feature formed : oceanianc ridge
Where in the world: Atlantic ridge
Humen impact: active volcanos, mines, earthquakes, rare with tsunamis

Question 2

Sliding boundary

Continent to continent

Answer 2

Feature formed : rift or fault
Where in the world: Sandra’s fault, California, where plates move against each other
Human impact : earthquakes

Question 3

Convergent
Collision boundary
Continent to continent

Answer 3

Feature formed : mountains (folded)
Where in the world: India, west South America
Human impact : earthquakes

Question 4

Convergent
Subduction boundary
Ocean to continent

Answer 4

Feature formed : in land active volcanos . Tall mountains, oceanic trenches
Where in the world: between nazaca plate, where land meets water, bc coast, South America
Human impact : volcano eruptions, tsunamis, earthquakes

Question 5

Convergent
Subduction
Ocean to ocean

Answer 5

Feature formed : active volcanos, trenches, volcano islands
Where in the world: lslands, India, Asia, perchillie trench, Japan, Indonesia
Human impact : earthquakes, trenches
, tsunamis

Question 6

Inner core

Answer 6

Composition: iron & nickle
Thickness:1250 km
State of matter:solid

Question 7

Outer core

Answer 7

Composition: iron & nickle
Thickness:2200 km
State of matter:liquid

Question 8

Upper/lower/ middle mantle

Answer 8

Composition: semi molten rock - magma
Thickness: 2900
State of matter: solid

Question 9

Crust

Answer 9

Composition: igneous, metamorphic, segnius, solid rock
Thickness: 50km continental- 5 oceanic
State of matter: solid

Question 10

What is the earths crust made up of?

Answer 10

The layer of solid rock

Question 11

Underneath the earths crust is?

Answer 11

Molten rock

Question 12

What is the cores state of matter and temp?

Answer 12

State- solid iron

Temp: 1500 c

Question 13

Outer core

Answer 13

Molten iron

Question 14

Mantle

Answer 14

Hot tar - 1200 c

Question 15

Crust

Answer 15

Thin and cool

Question 16

Mt St. Helens

Answer 16

Explosive volcano

Erupting whe the first pioneers cam up there

Question 17

Volcanos can

Answer 17

Re assembly of life

Question 18

The crust is made of

Answer 18

Tectonic plates floating on the earths mantle (molten metal)

Question 19

All the plates of the earths crust were one piece called :

Answer 19

Pangea

Question 20

Where are volcanos formed?

Answer 20

Where tectonic plates are spread apart

Question 21

Where plates come together

Answer 21

Mountains are where plates come together

Question 22

Which continent is North America moving away from

Answer 22

Europe

Question 23

Earthquakes are caused by

Answer 23

Shifting tectonic plates

Question 24

What is the name of the machine that monitors the earths plates?

Answer 24

Sizemagraph

Question 25

How thick is the earths core?

Answer 25

2800 k thick

Question 26

How many layers does the earth have

Answer 26

Three layers - crust, mantle, core

Question 27

What is the innermost layer and the hottest is..

Answer 27

Core made of iron and nickle

Question 28

What are the five layers of the earth

Answer 28

1. Crust 2. Upper mantle 3. lower mantle 4. Outer core 5. Inner core

Question 29

Alfred Wagner suggested

Answer 29

That all continents once were a supercontinent called Pangea