Unit 8: Forces that Change Earth

Question 1

Water above Earth’s surface. Rivers, lakes, oceans, creeks, etc.

Answer 1

surface water

Question 2

Water found in the spaces between rock particles below Earth’s surface

Answer 2

ground water

Question 3

The upper boundary of, or surface, of ground water

Answer 3

Water table

Question 4

the area of land that is drained by a river system

Answer 4

watershed

Question 5

an area of higher ground that separates a watershed

Answer 5

divide

Question 6

an body of rock or sediment that stores groundwater and allows it to flow

Answer 6

aquifer

Question 7

a measure of how easily water can flow through an aquifer

Answer 7

permeability

Question 8

the amount of storage space in an aquifer

Answer 8

porisity

Question 9

waste or other harmful material added to water

Answer 9

water pollution

Question 10

water that is suitable for drinking

Answer 10

potable water

Question 11

a body of water that usually forms behind a dam

Answer 11

reservoir

Question 12

the breakdown of rock material by physical and chemical processes

Answer 12

weathering

Question 13

the process by which rock is broken down by physical changes

Answer 13

physical weathering

Question 14

the breakdown of rock by chemical reactions

Answer 14

chemical weathering

Question 15

the breaking down and wearing away of rock by other rock

Answer 15

abrasion

Question 16

the process by which chemicals combine with oxygen

Answer 16

oxidation

Question 17

the process by which sediment and other materials are moved from one place to another

Answer 17

erosion

Question 18

the process by which eroded material is dropped.

Answer 18

deposition

Question 19

Multiple layers of deposited sediment that forms a flat area

Answer 19

floodplain

Question 20

Mounds of wind deposited sand

Answer 20

dunes

Question 21

a large mass of moving ice that forms bu the compacting of snow

Answer 21

glacier

Question 22

all materials carried and deposited by a glacier

Answer 22

glacial drift

Question 23

the sudden rapid movement of a large amount of material down slope

Answer 23

landslide

Question 24

an ecosystem that covers a large area

Answer 24

ecoregion

Question 25

a large treeless area of land that is characterized by deep, fertile soil

Answer 25

prarie

Question 26

a treeless wetland ecosystem

Answer 26

marsh

Question 27

an area of land that has gentle slopes and small differences in elevatioin

Answer 27

plain

Question 28

an ecosystem in which trees are the main form of plan life.

Answer 28

woodland

Question 29

a large, flat area that is higher than the surrounding land

Answer 29

plateau