Observing God's World Test 6

Question 1

the hardest known mineral; found in “pipes”

Answer 1

diamond

Question 2

small deposits of igneous and metamorphic crystals

Answer 2

gemstones

Question 3

any hollow space in the earth’s crust that has formed naturally and is large enough for a person to enter

Answer 3

cave

Question 4

any rock containing a metal together with impurities

Answer 4

ore

Question 5

the most commonly used practical metal; used for thousands of years to make tools

Answer 5

iron

Question 6

a metal that is a good conductor of electricity; two of its alloys are brass and bronze

Answer 6

copper

Question 7

any trace of a plant or animal left in a rock

Answer 7

fossil

Question 8

the are surrounding a magnet in which the force of the magnet affects other objects

Answer 8

magnetic field

Question 9

the ends of a magnet

Answer 9

poles

Question 10

the magnetic field produced by the earth

Answer 10

magnetosphere

Question 11

the hardest material that composes the earth’s crust

Answer 11

rock

Question 12

solidified molten rock

Answer 12

igneous rock

Question 13

sand and mineral fragments that have been pressed together

Answer 13

sedimentary

Question 14

rock that has been changed by extreme heat or pressure into a new kind of rock

Answer 14

metamorphic

Question 15

rock that covers over 75% of the earth’s surface

Answer 15

sedimentary

Question 16

type of igneous rock that is formed at the earth’s surface, cools rapidly, and has a fine-grained appearance

Answer 16

extrusive

Question 17

the most common igneous rock and can be found anywhere on land

Answer 17

granite

Question 18

type of igneous rock that remains in a pocket below the surface, cools slowly, and has a coarse-grained appearance

Answer 18

intrusive

Question 19

sedimentary rock that is formed by chemical sediments and is used for salting roads and flavoring food

Answer 19

halite

Question 20

sedimentary rock that is used to make glass

Answer 20

sandstone

Question 21

sedimentary rock that is the only stone formed by living animals

Answer 21

reef limestone

Question 22

metamorphic rock which began as shale, is very hard, and has leaflike layers

Answer 22

slate

Question 23

metamorphic rock which is perhaps one of the most beautiful and most widely used, and began as limestone

Answer 23

marble

Question 24

type of metamorphic rock which is made up of layers like the leaves of book

Answer 24

foliated

Question 25

hard, shiny, black coal; expensive to mine

Answer 25

anthracite

Question 26

most common type of coal, also known as ‘soft coal’

Answer 26

bituminous

Question 27

the poorest quality of coal, also known as ‘brown coal’

Answer 27

lignite

Question 28

the study of caves

Answer 28

speleology

Question 29

an animal that can live its entire life either in a cave or above ground and can go from one place to the other

Answer 29

troglophile

Question 30

a cave that is formed by the dissolving of underground rocks by water

Answer 30

solution cave

Question 31

the stone which caves usually form in

Answer 31

limestone

Question 32

an animal that visits caves regularly but must return to the surface to find food

Answer 32

trogloxene