Unit 7 Natural Resources

Front 1

fossil fuels

Back 1

a fuel formed from the decay of ancient forms of life; coal, oil, and natural gas; cheaper than alternative energy sources

Front 2

geothermal energy

Back 2

heat from below Earth's surface

Front 3

solar energy

Back 3

energy from the sun

Front 4

alternative energy source

Back 4

a source of energy other than the burning of

fossil fuels

Front 5

hydroelectricity

Back 5

electricity generated by running water

Front 6

renewable resources

Back 6

materials from the environment that people use that can be replaced relatively quickly

Front 7

nonrenewable resources

Back 7

materials from the environment that people use that cannot be replaced

Front 8

nuclear energy

Back 8

energy contained in the nucleus of an atom

Front 9

inexhaustible resources

Back 9

an energy source that cannot be used up

Front 10

thermal pollution

Back 10

the addition of warm water into a stream or lake that is normally cold

Front 11

pollution

Back 11

a harmful change to the environment; renewable resources produce less of this than fossil fuels

Front 12

coal

Back 12

created from the remains of ancient plants that lived in swamps

Front 13

acid rain

Back 13

formed when fossil fuels are burned and combined with water vapor, then falls to Earth as rain; type of pollution

Front 14

smog

Back 14

a mixture of smoke and fog, formed when fumes of cars collect in moist, calm air; type of pollution

Front 15

greenhouse gases

Back 15

released from burning fossil fuels and causing global temperatures to increase

Front 16

oil spills

Back 16

come from tankers or pipelines and can harm living things

Front 17

conservation

Back 17

saving, protecting, or using natural resources wisely

Front 18

reduce

Back 18

use less heat in winter, more fuel efficient cars

Front 19

biomass

Back 19

resource that comes from living, or recently

living creatures

Front 20

recycle

Back 20

water bottles and other plastics, paper, reduces amount of garbage

Front 21

reuse

Back 21

washable cloth napkins, tv and computer parts, water bottles

Front 22

Examples of nonrenewable energy resources

Back 22

coal, oil, natural gas, minerals

Front 23

Examples of alternative energy sources

Back 23

wind, solar energy, geothermal energy

Front 24

problems associated with oil spills in the ocean

Back 24

contaminants sink to deep waters and affect ocean ecosystems, feeding becomes difficult for sea birds and the affected birds cannot fly

Front 25

How can trees be renewable or nonrenewable?

Back 25

they are renewable, unless they are cut down more quickly than they are replaced

Front 26

ways people misuse resources and cause harm to the environment

Back 26

burning fossil fuels

building dams can disrupt aquatic ecosystems

cutting down too many trees