Rocks and Minerals

Question 1

Crust

Answer 1

Thinnest layer of earth’s interior

Question 2

How deep is the oceanic Crust

Answer 2

5-6 miles deep

Question 3

How wide is the continental crust

Answer 3

15-20 miles

Question 4

What is the MoHo

Answer 4

the transition zone between the crust and mantle

Question 5

Mantle

Answer 5

Thickest layer

Question 6

Lithosphere

Answer 6

includes crust and top of the mantle; solid rock

Question 7

Asthenosphere

Answer 7

upper mantle; liquid rocks

Question 8

What kind of plates reside in the Asthenospehere

Answer 8

Lithospheric plates

Question 9

Mesophere

Answer 9

Lower mantle

Question 10

Outer Core?

Answer 10

Liquid rock

Question 11

Inner Core

Answer 11

Solid and Dense

Question 12

What is the radius of the earth

Answer 12

4,000 miles

Question 13

How long is the continental crust

Answer 13

15-20 miles

Question 14

How long is the lithosphere

Answer 14

50 miles

Question 15

How long is the Asthenophere

Answer 15

200 miles

Question 16

How many chemical elements bond to form compounds

Answer 16

90

Question 17

How many known minerals are there

Answer 17

4,000

Question 18

How many minerals make up 95% of all rocks

Answer 18

20

Question 19

What are the four things minerals must do

Answer 19

1) Be found in nature
2) be composed of inorganic materials
3) maintain the same chemical composition
4) have atoms form crystals

Question 20

How are igneous rocks formed

Answer 20

Formed by the cooling and solidification of molten (liquid) rock

Question 21

How are sedimentary rocks formed

Answer 21

formed of sediment that is consolidated by the combination of pressure and cementation

Question 22

How are metamorphic rocks formed

Answer 22

rocks that was originally igneous or sedimentary but has been drastically changed by massive heat or pressure from the earth

Question 23

Where are ore deposits from

Answer 23

individual minerals that are extracted

Question 24

Where are metallic ores deposited

Answer 24

in the crust where litospheric plates move

Question 25

How do ore deposits form

Answer 25

when molten rock cools

Question 26

Weathering

Answer 26

concentrates minerals in the soil

Question 27

5 abundant Metallic Minerals

Answer 27

Iron, Aluminum, Magnesium, Titanium, Manganese

Question 28

6 scarce metallic minerals

Answer 28

Copper, Lead, Zinc, Nickel, Gold, Silver

Question 29

Non-metallic minerals used as building materials

Answer 29

Stone, Sand, Gravel, Cement, Plaster

Question 30

Non-metallic minerals used in fertilizer and chemical products

Answer 30

Halite, Sulfur

Question 31

What do you use solution or placer mining for?

Answer 31

Problems

Question 32

What is Open pit mining

Answer 32

removal of materials like stone, sand and gravel by digging them out of earths surface and leaving a large pit

Question 33

What is Strip Mining

Answer 33

cutting a series of shelves or terraces on the side of a hill to remove minerals

Question 34

What minerals is subsurface mining used for?

Answer 34

Gold, silver, lead, zinc, copper, diamonds, and coal

Question 35

How can we reduce the amount of mineral extractions?

Answer 35

1) Conserve minerals 2) Recycle 3) Substitute new materials for the minerals