Chapter 30&31 Questions

Question 1

What are the three types of rock?

Answer 1

Igneous, sedimentary, metamorphic

Question 2

What are the 3 types of volcanoes?

Answer 2

Shield cones, cinder cones, composite cones

Question 3

What are the clastic sedimentary rocks?

Answer 3

Shale, sandstone, conglomerate

Question 4

What are the three types of foliated metamorphic rock?

Answer 4

Slate, schist, gneiss

Question 5

What are the types of nonfoliated metamorphic rocks?

Answer 5

Marble, quartzite

Question 6

What created the rock cycle?

Answer 6

Weathering, erosion, deposition, and metamorphism

Question 7

Silver has a density of 10.5 g/cm 3. What is its specific gravity?

Answer 7

10.5g

Question 8

What is the relationship between density and specific gravity?

Answer 8

They are equal.

Question 9

What are the two most abundant elements in the earths crust?

Answer 9

Oxygen, silicon

Question 10

What are the two most abundant minerals in the earths crust?

Answer 10

Silicates, oxides

Question 11

What is partial melting?

Answer 11

The incomplete melting of rocks, resulting in magma a of different compositions.

Question 12

What are the two most common igneous rocks and where do they generally occur?

Answer 12

Granite and andestite in the continents. Basalt on the ocean floor.

Question 13

What percentage of the earths crust is composed of igneous rock?

Answer 13

95%

Question 14

What volcanoes produces the most violent and quietest eruptions?

Answer 14

Violent- composite

Quiet- shield

Question 15

What are three common types of plutons?

Answer 15

Dike, sill, batholiths, laccoliths

Question 16

What type of rock is made of pre existing rock whose formation does not involve high temperatures and pressure?

Answer 16

Clastic sedimentary rock

Question 17

What are the five groups of minerals that make up most rock types?

Answer 17

Silicates, oxides, carbonate, Sulfides, sulfate