Chapter 2 Rocks: Mineral Mixtures

Question 0

How is the scalpel shown in Fig. 2 similar to stone tools used by early humans?

Answer 0

Then and now they both used obsidian to make sharp tools

Question 1

Rock is a solid ________ of crystals of one or more minerals.

Answer 1

Mixture

Question 2

What are some rocks that have been used as building materials?

Answer 2

1) Marble
2) Limestone
3) Slate

Question 3

Fossils found in rocks provide clues about the history of ______ on earth.

Answer 3

Life

Question 4

Scientists classify rock into one of the three main categories by….

Answer 4

how they are formed

Question 5

What are the main types of rock?

Answer 5

1) Sedimentary
2) Igneous
3) Metamorphic

Question 6

Grains of sand are _______ from mountains and wash down in rivers to the sea.

Answer 6

Eroded

Question 7

Which kind of rock could be described as being formed by “pressure cooking?”

Answer 7

Metamorphic rock

Question 8

What processes transform magma into igneous rock?

Answer 8

Cooling

Question 9

Sedimentary rock forms from the cooling of ________

Answer 9

Magma

Question 10

The sediments that form sedimentary rock can only come from ________

Answer 10

Igneous Rock

Question 11

Heat and pressure will change _________ rock into __________

Answer 11

Igneous rock —-> metamorphic rock

Question 12

Earth scientists classify different rocks according to their ___________ and their __________.

Answer 12

Composition and texture

Question 13

What determines the composition of a rock?

Answer 13

The minerals a rock is made of

Question 14

Small grained rocks have a ________ texture

Answer 14

Fine grained

Question 15

Rocks made up of large grains have a ___________ texture.

Answer 15

Coarse grained

Question 16

Sand on sed in the sea evaded to the bottom to settle

Answer 16

Deposition

Question 17

Erosion of the overlying rock exposes

Answer 17

Sediments

Question 18

The process of the slate being compacted

Answer 18

Burial

Question 19

The binding together of particles or other things by cement

Answer 19

Cementing

Question 20

Formed by the Deposition of material at the surface and within bodies of material

Answer 20

Sedimentary rock

Question 21

Pressure

Answer 21

The quality of being hot or high temp

Question 22

Alteration of the composition of structure of a rock by heat

Answer 22

Metamorphism

Question 23

Make or become

Answer 23

Melting

Question 24

To make solid

Answer 24

Solidification