8th grade Water Unit review (NC, 2025)

nonpoint source pollution

• Pollution that comes from a single, specific site

• Pollution that comes from many sources rather than from a single, specific site

• Pollution that is easily identifiable

• Pollution that is caused by industrial waste

surface water

• Water found underground in aquifers.

• Water above the surface of the land, including lakes, rivers, streams, ponds, floodwater, and runoff.

• Water that is vaporized in the atmosphere.

• Water that is stored in glaciers and ice caps.

coastal areas

• Regions where land meets the ocean; nearby water creates LESS extreme seasons (smaller range)

• Regions far from the ocean with extreme seasonal changes

• Areas characterized by high mountain ranges and low temperatures

• Regions dominated by deserts and dry climates

groundwater

• Water held underground in the soil or in pores and crevices in rock.

• Water that flows on the surface of the earth in rivers and lakes.

• Water vapor present in the atmosphere.

• Water that is stored in glaciers and ice caps.

equator

• Location of low salinity water due to high levels of precipitation

• Area with the highest salinity due to evaporation

• Region characterized by cold ocean currents

• Zone of minimal rainfall and high evaporation

global ocean conveyor belt

• Constantly moving systems of deep-ocean water driven by thermohaline circulation

• A series of ocean currents that only flow at the surface

• A phenomenon that only occurs in the Arctic Ocean

• A static body of water that does not change over time

macroinvertebrates

• Stonefly and dragonfly larvae; useful bioindicators

• Fish and amphibians; common in freshwater

• Birds and mammals; indicators of terrestrial health

• Bacteria and fungi; essential for decomposition

precipitation

• Any form of water that falls from clouds and reaches Earth's surface.

• A type of cloud formation that indicates rain is coming.

• The process of water vapor turning into liquid water in the atmosphere.

• A measurement of the amount of water in the soil.

watershed

• A type of water purification system

• The land area that supplies water to a river basin

• A method of irrigation

• A geographical area with no water sources

density of cold water

• Low

• Medium

• High

• Variable