Chapter 16-18 (vocabulary) Flashcards Preview

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Flashcards in Chapter 16-18 (vocabulary) Deck (27):
1

Hydroelectric Energy

Energy produced from moving water and is a renewable resource accounting for about 20% of the world's electricity.

2

Geothermal Energy

The energy from heat in the Earth's crust.

3

Alternative Energy

Energy sources that are still in development.

4

Energy Efficiency

The percentage of energy put into a system that does useful work.

5

Energy Conservation

Saving energy in ways such as using energy-efficient devices and wasting less energy.

6

Mineral

A naturally occurring, usually inorganic solid that has a characteristic chemical composition, an orderly internal structure, and a characteristic set of physical properties.

7

Ore Mineral

Minerals that are valuable and economical to extract.

8

Subsurface Mining

Method by which are deposits that are usually found 50 m or more beneath Earth's surface are mined.

9

Surface Mining

The methods that are used when are deposits are located close to Earth's surface.

10

Place Deposit

Surface-deposits where the minerals from rocks disintegrated by weather are concentrated by wind and water.

11

Smelting

A process where crushed ore is melted at high temperatures in furnaces to separate impurities from molten metal.

12

Slag

The layer of flux and impurities, which are less dense, formed on top of the molten metal during smelting.

13

Reclamation

The process of returning land to its original or better condition after mining is completed.

14

Fossil Fuels

The remains of ancient organisms that changed into coal, oil, or natural gas.

15

Electric Generator

A machine that converts mechanical energy, or motion, into electrical energy.

16

Petroleum

Oil that is pumped from the ground, also known as crude oil.

17

Oil Reserves

Oil deposits that can be extracted profitably at current prices using current technology.

18

Nuclear Energy

The energy within the nucleus of an atom which nuclear power plants get their power from.

19

Nuclear Fission

A process where the collisions of atoms cause the nuclei to split when bombarded with atomic particles.

20

Nuclear Fusion

When lightweight atomic nuclei combine to form a heavier nucleus and release tremendous amounts of energy.

21

Renewable Energy

Energy from sources that are constantly being formed.

22

Passive Solar Heating

The use of the sun's energy to heat something directly.

23

Active Solar Heating

Technology that gathers energy from the sun through collectors to use to heat water or to heat a building.

24

Biomass Fuel

Plant material, manure, and other inorganic matter that is used as an energy source.

25

Ocean Thermal Energy Conversion (OTEC)

Technology such as the experimental power station off the shores of Hawaii which use temperature difference between the surface at the ocean, which is wormed by solar energy, and deep ocean waters to generate electricity.

26

Fuel Cell

Produces electricity chemically by combing hydrogen fuel with oxygen from the air like a battery.

27

Subsidence

The sinking of regions of the ground with little or no horizontal movement.