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Science > Ch 7 Resources > Flashcards

Ch 7 Resources Flashcards

1
Q

Mineral

A

A substance that makes up rock by using chemicals

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2
Q

Mineral Ore

A

A rock that contains minerals and value

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3
Q

Crust

A

A layer in the Earth

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4
Q

Mining

A

The process of removing dirt or minerals from the ground

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5
Q

Open cut mining

A

A method of mining mineral ore close to the surface

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6
Q

Underground Mining

A

A method of mining of mineral ore’s that are deep below the surface

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7
Q

Concentration

A

A process of making a substance stronger

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8
Q

Gangue

A

Leftover waste rock

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9
Q

Reduction

A

The process of making mineral ore metallic

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10
Q

Smelting

A

Melting mineral ore to separate the metal contained

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11
Q

Purification

A

The removal of impurities from metals to produce a pure metal

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12
Q

Turbines

A

Wheels that, when turned drive electrical generators

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13
Q

Wind energy

A

A renewable energy derived from the wind

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14
Q

Biomass

A

Material produced by living organisms

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15
Q

Ocean wave energy

A

A renewable energy created by converting the mechanical energy of ocean waves to electrical energy

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16
Q

Tidal energy

A

A renewable energy that can be harvested from the tides in the ocean

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17
Q

Geothermal Energy

A

Heat energy transferred from rock’s below the Earth’s surface

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18
Q

Hydro-electric

A

Power produced by the energy of falling water

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19
Q

Nuclear Energy

A

The energy stored at the centre of Atoms, the tiny particles that make up substances

20
Q

Evaporation

A

The process of liquid to gas

21
Q

Transpiration

A

The process of liquid to gas via a plant using photosynthesis

22
Q

Condensation

A

The process of gas to a liquid

23
Q

Precipitation

A

Changes state from gas to liquid

24
Q

Percolation

A

Water moves from above ground to below ground

25
Q

Ice

A

Ice is frozen water

26
Q

Snow

A

Water frozen into ice crystals and little white flakes

27
Q

Run off

A

When water runs down a mountain

28
Q

Erosion

A

When a liquid moves a solid

29
Q

Fossil Fuels

A

A fuel that has been created from the remains of organisms such as Coal, Oil and natural gas

30
Q

Peat

A

A brown substance made up of decomposed vegetable matter

31
Q

Black Coal

A

A type of coal

32
Q

Brown Coal

A

A type of coal

33
Q

Oil

A

A liquid that is obtained by drilling and is used in things such as Petrol

34
Q

Natural Gas

A

A type of gas that is obtained by drilling.

35
Q

Cloud

A

A visible collection of small water droplets

36
Q

Fog

A

A collection of small water drops in the air

37
Q

Water cycle

A

The constant circulation of water on earth

38
Q

Green house effect

A

A natural effect on the earth atmosphere trapping heat

39
Q

Global Warming

A

The observed rise in the near surface temperature of the earth

40
Q

Overburden

A

Rock soil and vegetation which are removed before mining

41
Q

Sedimentary Rocks

A

Rocks formed from sediments

42
Q

Porous

A

Having many pores or other small spaces that can hold a gas or liquid to pass through

43
Q

Grey Water

A

Waste water from the kitchen or bathroom

44
Q

Black Water

A

Water that is full of sewage

45
Q

Biodegradable

A

Describes a substance that can break down

46
Q

Desalination

A

The process of getting rid of all the salt from ocean water

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