1-3 Science

Question 1

when a body of salt water dries up, minerals are left behind . As the water evaporates, the minerals crystallize. Example: gypsum and halite

Answer 1

evaporation

Question 2

high temperatures and pressures deep below the ground can cause the minerals in rock to change into different minerals. Example: garnet graphite talc magnetite

Answer 2

metamorphism

Question 3

surface water and ground water carry dissolved minerals into lakes or seas. The minerals can crystallize on the bottom of the lake or sea. Example: calcite and dolomite

Answer 3

deposition

Question 4

water underground can be heated by hot rock. The hot rock water can dissolve some minerals and deposit other minerals in their place. Example: gold copper sulfur pyrite galena

Answer 4

reaction

Question 5

melted rock cam cool slowly under earth’s surface. As the melted rock cools, minerals form. Example: mice feldspar quartz

Answer 5

cooling

Question 6

used to remove ores that are near earth’s surface

Answer 6

surface mining

Question 7

used to remove ores that re deep underground

Answer 7

subsurface mining

Question 8

used to remove large, near surface deposits of gold and copper

Answer 8

open-pit mining

Question 9

are open mines that are used to remove sand, gravel, and crushed rock

Answer 9

quarries

Question 10

are often used to mine coal

Answer 10

strip mines

Question 11

nonmetallic mineral that are considered valuable because of their beauty or rarity

Answer 11

gemstones

Question 12

a small amount of an element not usually found in the mineral

Answer 12

impurity

Question 13

a natural material whose concentration of economically valuable minerals is high enough for the material to be mined profitably

Answer 13

ore

Question 14

the process of returning land to its original condition after mining is completed

Answer 14

reclamation