Rocks

Question 1

what are usually found inside of rocks

Answer 1

minerals

Question 2

the outermost layer of the Earth, includes the crust and uppermost part of the mantle

Answer 2

litosphere

Question 3

A very hot mixture of molten rock and gas, just bellow the earths surfaces

Answer 3

magma

Question 4

Broken down material usually causes by weathering and erosion

Answer 4

sediments

Question 5

elements found in the earths crust which are

uncombined

Answer 5

Native elements

Question 6

geometrically-shaped substance made up of atoms and molecules

Answer 6

crystals

Question 7

appearance of a mineral caused by the way it reflects

light.

Answer 7

lustre

Question 8

colour of a mineral as a fine powder, found by rubbing it onto an unglazed white ceramic tile

Answer 8

steak

Question 9

a measure of how difficult it is to scratch the surface of a solid material. The hardness rating of a mineral is determined by comparison with ten standard minerals. Diamond has a hardness rating of 10

Answer 9

Hardness

Question 10

what is used to break down rocks over time usually with the help of liquid and movement

Answer 10

Erosion

Question 11

When sedimentary rocks mix with solutions used to make chemical rocks

Answer 11

chemical

Question 12

things found in nature used to create rocks ie coal

Answer 12

organic

Question 13

rocks that form from the cooling of lava or magma as it is thrown through the air from a volcanic eruption

Answer 13

igneous

Question 14

igneous rock that forms when lava cools above the Earth’s surface

Answer 14

extrusive

Question 15

lava which has solidified in the air without touching the round

Answer 15

Pumice rocks

Question 16

Lava which has landed then solidified on the ground made from the same material as Pumice rocks

Answer 16

Basalt rocks

Question 17

intrusive rocks solidified in the ground

Answer 17

obsidian

Question 18

very hard used to make benchtops, igneous rock, brakes in nice flat pieces.

Answer 18

granite

Question 19

intrusive rock mass that measures more than 100 kilometers across

Answer 19

batholiths

Question 20

an idealized cycle of processes undergone by rocks in the earth’s crust, involving igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, and further melting and igneous intrusion.

Answer 20

rock cycle

Question 21

remains, impression, or trace of an animal or plant of a former geological age; evidence of life in the past

Answer 21

fossil

Question 22

a scientist who studies fossils

Answer 22

paleontologists

Question 23

the age of a rock compared with the age of another roc

Answer 23

relative age

Question 24

a dark, igneous rock formed from gassy lava that cools quickly

Answer 24

scoria

Question 25

a property of a material or substance that easily scratches another

Answer 25

abrasive

Question 26

rocks formed from sediments deposited by water, wind or ice. The sediments are cemented together in layers, under pressure.

Answer 26

sedimentary rocks

Question 27

the wearing away and removal of soil and rock by natural elements, such as wind, waves, rivers and ice, and by human activity

Answer 27

erosion

Question 28

a coarse-grained metamorphic rock formed mainly as a result of great pressure on granite

Answer 28

gneiss

Question 29

rocks mined to obtain a metal or other chemical within them

Answer 29

mineral ores

Question 30

mining that scours out soil and rocks on the surface of the land

Answer 30

open-cut mining

Question 31

mining that uses shafts and tunnels to remove rock from deep below the surface

Answer 31

underground mining

Question 32

a mixture of a metal with a non-metal or another metal

Answer 32

alloy

Question 33

the age of a rock compared with the age of another rock

Answer 33

relative age

Question 34

a cavity in a rock that shows the shape of the hard parts of an organism; types of fungi found growing on the surface of foods

Answer 34

mold