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Science > Chapter 7 > Flashcards

Chapter 7 Flashcards

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Biology 101 flashcards
1
Q

Biodegradable

A

describes a substance that breaks down or decomposes easily in the environment

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2
Q

Biomass energy

A

Using dead plants and animals to create energy

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3
Q

Black coal

A

The last possible type of driest coal that gives out energy

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4
Q

Brown coal

A

The first stage of black coal when it’s been compressed enough to create energy.

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5
Q

Clouds

A

A visible collection of small water droplets in the air high above the ground

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6
Q

Concentration

A

The process of purifying a substance by removing it from gangue

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7
Q

Crust of the earth

A

The base of the earth that we walk on and live on

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8
Q

Condensation

A

Cloud forming

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9
Q

Deforestation

A

the removal of trees from the land

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10
Q

Deposition

A

Athe laying down of weathered rock particles and soil by rivers, wind, oceans and glaciers

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11
Q

Desalination

A

the conversion of sea water to fresh water

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12
Q

Erosion

A

Othe process of moving weathered rock or soil from one place to another

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13
Q

Fog

A

Fog is when clouds get so close to the ground, that we are living in the clouds.

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14
Q

Fossil fuels

A

The remains of dead plants and animals, that are compressed so far together, that they can be burnt to create electricity.

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15
Q

Gangue

A

The excess materials found on mineral ores

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16
Q

Geothermal energy

A

Using the earths natural het to create energy.

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17
Q

groynes

A

jetty built into the sea to prevent the erosion of the beach

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18
Q

Gyres

A

a circular pattern of currents in an ocean basin.

19
Q

Hydro electricity

A

The use of water to generate electricity

20
Q

Humus

A

organic matter resulting from the decomposition of plant and animal tissue in the soil. Humus helps the soil hold water and mineral nutrients needed by plants

21
Q

Mineral

A

The state of final production of that ore. Bauxite etc.

22
Q

Mineral ore

A

The first form of an ore found underground.

23
Q

Natural gas

A

A fossil fuel consisting of mainly methane

24
Q

Nuclear

A

the energy stored at the centre of atoms, the tiny particles that make up all substances. Nuclear energy can be released from the radioactive metals uranium or plutonium and transformed into electrical energy in a nuclear power station

25
Q

Non renewable resource

A

Takes 80 or more years to replenish, and we use it more than the rate that it can replace itself

26
Q

Open cut mining

A

Making a slit in the ground, and then mining to the sides and deeper. Less dangerous than underground mining

27
Q

Over burden

A

rock, soil and vegetation, which are removed before mining can commence.

28
Q

Peat

A

The remains of formed fossil fuels.

29
Q

Reduction

A

The process of making a substance stronger/purer by seperate get it from its foreign substance.

29
Q

Purification

A

The removal of impurities from metals to produce a pure metal

29
Q

Porous rocks

A

A rock that can pass liquids through it

30
Q

Precipitation

A

Rain

31
Q

Renewable resource

A

The resource Can replenish as fast as we use it. Takes 80 or less years to replenish.

31
Q

Sedimentary rocks.

A

I rocks formed from sediments

32
Q

Run off

A

When water precipitates on the ground, and it makes its ways to main bodies of water.

34
Q

Smelting

A

The process of melting mineral ores

35
Q

Sediments

A

Matter that is carried by water or wind, and is deposited into bodies of water, and on the surface If land.

36
Q

Solar energy

A

Using the Suns natural heat to create electricity

38
Q

Soil

A

complex mixture of the products of weathering and organic matter, both living and dead

39
Q

The water cycle

A

the constant circulation of water on Earth, as it evaporates from the sea, condenses into clouds and precipitates

40
Q

Turbines

A

wheels that, when turned, drive electrical generators. Steam or water are often used to turn turbines.

41
Q

Underground mining

A

Mining without any direct air supply. Extreemly dangerous because: cave ins, fainting, flooding etc. can occur

42
Q

Weathering

A

the process of breaking down rocks by conditions in the atmosphere

Science (7 decks)

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