Science Vocab Stuff

Front 1

Fresh Water

Back 1

water that is not salty and has little or no taste, smell or color

Front 2

Salt water

Back 2

water with dissolves salts or other minerals

Front 3

water cycle

Back 3

continuous movement of water through the environment of earth

Front 4

evaporation

Back 4

the process in which water changes from liquids to vapor

Front 5

condensation

Back 5

the process in which water vapor in the atmosphere becomes liquid

Front 6

precipitation

Back 6

water that falls from clouds

Front 7

divide

Back 7

a ridge or continuous line of high land from which water flows in different directions.

Front 8

drainage basin

Back 8

a watershed, an area into which all of the water on one side of a divide flows.

Front 9

turnover

Back 9

the rising and sinking of cold and water layers in a lake

Front 10

eutrophication

Back 10

increase of nutrients in a lake or pond

Front 11

iceberg

Back 11

mass of ice floating in the ocean

Front 12

ground water

Back 12

water held under ground

Front 13

permeable

Back 13

a substance liquid can flow through

Front 14

impermiable

Back 14

a substance that liquids are prevented from flowing through

Front 15

water table

Back 15

the top of the region that is saturated

Front 16

aquifer

Back 16

an underground layer of permiable rock or sedimate

Front 17

spring

Back 17

a flow of water from a place that dipps below the water table.

Front 18

artisian well

Back 18

well in which the water flows up naturally because of pressure

Front 19

irrigation

Back 19

the process of supplying water to land in order to grow crops

Front 20

aquaculture

Back 20

the science& buisness of raising and harvesting fishin a controlled siduation

Front 21

dam

Back 21

a structure that holds back and controls the flow of water in a river or other body of water

Front 22

concentration

Back 22

the amount of a substance that is in another substance

Front 23

sewage system

Back 23

system that collects and treats wastewater from a city or a town

Front 24

septic sustem

Back 24

a small wastewater system, used by a home or a business

Front 25

point-source pollution

Back 25

pollution that enters water from a known source

Front 26

nonpoint-source pollution

Back 26

a pollution whose source is hard to find or is scattered

Front 27

drought

Back 27

is a long period of abnormally low rainfall

Front 28

desalination

Back 28

the process of removimng salt from, ocean water

Front 29

salinity

Back 29

a measure of the amount of dissolved salt contained in water

Front 30

density

Back 30

a measure of the amount of matter packed into a given volume

Front 31

continental shelf

Back 31

flat, gently sloping land that lies submerged around the edge of a continent and extends from the shoreline to a continental slope

Front 32

sonar

Back 32

a system that uses sound waves to measure distance and local objects. Normally used under water.

Front 33

ocean current

Back 33

a mass of moving water

Front 34

downwelling

Back 34

movement of water to greater depths

Front 35

upwelling

Back 35

movement of water to the surface.

Front 36

El nino

Back 36

a global weather event caused by changes in the air and water movements

Front 37

longshore current

Back 37

water that moves parallel to the shore

Front 38

rip current

Back 38

narrow streams that break through sandbars and drain rapidly back to sea

Front 39

tidal range

Back 39

the difference in height between high tide and the next low tide

Front 40

spring tide

Back 40

an extra-high tidal bulge and extra low tidal dip caused by the sun and moon acting together

Front 41

neap tide

Back 41

smaller tidal bulge and dip that occur during the first and third quarters of the moon

Front 42

habitat

Back 42

an environment with all the necessary requirements for an organism to live

Front 43

intertidal zone

Back 43

the habitat at the edge of the ocean

Front 44

estuaries

Back 44

shoreline areas with river fresh water and ocean salt water mix

Front 45

wetlands

Back 45

wet swampy areas that are often flooded with water

Front 46

tide

Back 46

periodic rising and falling of the water level of the ocean

Front 47

coral reef

Back 47

built up limestone deposits formed by large colonies of ant-sized organisms called coral

Front 48

kelp forest

Back 48

large communities of a certain type of seaweed called kelp

Front 49

phytoplankton

Back 49

microscopic floating organism that live at or near the sunlit surface

Front 50

hydrothermal vents

Back 50

heated water that is emitted from openings in the earth crust

Front 51

overfishing

Back 51

catching fish at a faster rate than they can reproduce

Front 52

by-catch

Back 52

the portion of animals that are caught in a net and then thrown away