Ch 7 - Precious Resources

Question 1

Mineral

Answer 1

Substances that make up the rocks. Every mineral has its own substances.

Question 2

Mineral Ore

Answer 2

A rock that has precious jewels inside of it.

Question 3

Mineral Ore

Answer 3

A substance that contains minerals of value, they can be mined.

Question 4

Crust

Answer 4

The outer layer of the Earth, including landforms, rocks and soil.

Question 5

Mining

Answer 5

Removing the mineral ores from the ground.

Question 6

Open Cut Mining

Answer 6

A method when the mineral ores are close to the surface, a large hole is made to show the rock, and they use explosives to break it up.

Question 7

Underground Mining

Answer 7

A method where the miners go deep underground to mine ores, they build shafts and tunnels to gain access to the mineral.

Question 8

Concentration

Answer 8

The process where you purify the mineral ore by removing any useless substances such as sand, stone, soil etc. The technique used is called froth flotation.

Question 9

Reduction

Answer 9

Is when you usually add chemicals and smelt the mineral ore so you can remove the metal or mineral contained.

Question 10

Purification

Answer 10

After smelting, the metals can still contain impurities, so you add numerous chemicals to purify it.

Question 11

Turbines

Answer 11

A big pole with blades that rotate by wind, causing electro magnetic energy.

Question 12

Wind Energy

Answer 12

A renewable energy that is caused by the uneven heating of the Earth.

Question 13

Biomass

Answer 13

The remains of dead organisms or something that was alive.

Question 14

Ocean Wave Energy

Answer 14

A renewable source converted by the mechanical energy of the waves to electrical energy.

Question 15

Tidal Waves

Answer 15

A renewable energy that can be used by a large underwater turbine placed in high tidal areas.

Question 16

Geothermal Energy

Answer 16

A source of heat energy when the rocks cause the water to turn into steam and they power the wind turbines.

Question 17

Hydro Electricity

Answer 17

Power produced by water.

Question 18

Nuclear Energy

Answer 18

The energy that is stored at the centre of an atom, nuclear energy is usually made from uranium and plutonium.

Question 19

Evaporation

Answer 19

When the sun heats up the water and the water goes from liquid to gas.

Question 20

Transpiration

Answer 20

When the plants and trees release water through their stomata. Form of evaporation. Type of liquid to gas.

Question 21

Condensation

Answer 21

The process when the gas from evaporation cools down and becomes liquid.

Question 22

Precipitation

Answer 22

When it rains, snows or hails and is part of the condensation process.

Question 23

Percolation

Answer 23

The process when some of the water goes underground after precipitation occurs.

Question 24

Ice

Answer 24

Frozen water that is a solid.

Question 25

Snow

Answer 25

Water vapor that turns into ice crystals and fall lightly as snow flakes.

Question 26

Erosion

Answer 26

When a natural element such as wind or water move something from one place to another.

Question 27

Run Off

Answer 27

When it rains/precipitates, some of the water goes into a lake or river creating a bigger lake or river.

Question 28

Fossil Fuels

Answer 28

When the remains of dead organisms are kept over hundreds of years and turn into oil and other natural gases.

Question 29

Peat

Answer 29

A brown material that is formed from decomposed vegetables. First form of coal.

Question 30

Black Coal

Answer 30

Is the best kind of coal that releases the most energy when burnt, due to less water from compression underground.

Question 31

Brown Coal

Answer 31

The second form of coal after peat. Brown coal is efficient, but not as good as black coal.

Question 32

Oil

Answer 32

Created after the remains of organisms are compressed and heated, used for petrol and electricity.

Question 33

Natural Gas

Answer 33

Formed after the remains of organisms are compressed and heated. Natural Gases are a layer above oil. They are used for heating.

Question 34

Bituminous Coal

Answer 34

The Third kind of coal that is a bit darker brown.

Question 35

Weathering

Answer 35

The process when the rock breaks down, caused by the atmosphere.

Question 36

Soil

Answer 36

A complex mixture of weathered, eroded products and organic matter. Made up of weathered rocks.

Question 37

Deposition

Answer 37

The laying down of weathered rock particles and soil by rivers, wind etc.

Question 38

Humus

Answer 38

The decomposed matter of plants and animals that are able to hold water, nutrients and oxygen, able to have plants in it.

Question 39

Deforestation

Answer 39

The removal of trees from a land.

Question 40

Groynes

Answer 40

A small pier that blocks the tides and wind from eroding the sand from the beach.

Question 41

Salinity

Answer 41

The measure of how much salt there is.

Question 42

Groundwater

Answer 42

When it rains, the water goes down into the ground.

Question 43

Water Table

Answer 43

The top part of the groundwater.