6th Grade Chapter 3: Natural Resources

Question 1

layer of sand, gravel, or bedrock that holds and moves ground water

Answer 1

aquifer

Question 2

formed when the remains of plants and animals are buried quickly

Answer 2

fossil fuel

Question 3

floating ice shelf

Answer 3

ice shelf

Question 4

solid substance found naturally in the earth’s surface

Answer 4

minerals

Question 5

factory that separates crude oil into different products

Answer 5

refinery

Question 6

mineral that is used to produce nuclear energy

Answer 6

uranium

Question 7

concentrated area of a specific mineral

Answer 7

vein

Question 8

forms when sea water freezes

Answer 8

sea ice

Question 9

resource that can be replaced by natural means in a relatively short amount of time

Answer 9

renewable resource

Question 10

metals that can be dented or shaped

Answer 10

malleable

Question 11

most abundant metal in the earth’s crust

Answer 11

aluminum

Question 12

all of the earth’s water

Answer 12

hydrosphere

Question 13

uses steam from the earth to turn turbines and produce energy

Answer 13

geothermal energy

Question 14

list some fossil fuels

Answer 14

coal, natural gas, petroleum

Question 15

problems of using fossil fuels

Answer 15

air pollution, oil spills, soot and sulfur gas

Question 16

best way to prevent erosion on empty fields

Answer 16

planting a ground cover crop

Question 17

best way to increase crop production after using fields for years

Answer 17

letting fields lie fallow (empty) for a time

Question 18

disadvantage of wind and solar energy

Answer 18

large land areas needed, expensive

Question 19

advantage of geothermal energy

Answer 19

plants are inexpensive to build and operate

Question 20

advantages of windmills/wind power

Answer 20

no pollution, renewable, little maintenance

Question 21

water stored beneath the surface of the earth

Answer 21

ground watertrans

Question 22

water returns to the sky through these 2 processes in the water cycle

Answer 22

transpiration and evaporation

Question 23

all the materials on the earth available for man’s use

Answer 23

natural resources

Question 24

advantages and disadvantages of nuclear energy

Answer 24

efficient and clean, but can be dangerous because of radiation, used fuel needs special storage to keep environment safe.

Question 25

how oceans provide for mankind

Answer 25

provides fresh water through water cycle, helps with carbon-dioxide cycle, provides oxygen through photosynthesis, influences climate

Question 26

how you can help conserve natural resources

Answer 26

reduce, reuse, recycle

Question 27

coal

Answer 27

nonrenewable

Question 28

petroleum

Answer 28

nonrenewable

Question 29

geothermal energy

Answer 29

renewable

Question 30

natural gas

Answer 30

nonrenewable

Question 31

nuclear energy

Answer 31

nonrenewable

Question 32

hydroelectric energy

Answer 32

renewable

Question 33

solar energy

Answer 33

renewable

Question 34

wind energy

Answer 34

renewable

Question 35

transpiration

Answer 35

Evaporation of water from the leaves of a plant

Question 36

evaporation

Answer 36

The change of a substance from a liquid to a gas

Question 37

precipitation

Answer 37

the falling to earth of any form of water (rain or snow or hail or sleet or mist)

Question 38

phytoplankton

Answer 38

Microscopic, free-floating organisms in the oceans that help with photosynthesis