Science Test 1 8th grade Flashcards
(21 cards)
One end of a molecule is more positive and the other is more negative
Polarity
When a molecule can cling to other molecules of the same type
Cohesion
Warm weather pattern that occurs in the Pacific Ocean
el Niño
The ability of a sediment to transmit liquids
Permeability
The land that lead water to a river, then the ocean
River basin
Natural filters and brackish nursing grounds where fresh water flows into the ocean
estuaries
When deep cold water rises to the surface, carrying nutrients
Upwelling
CO2 coming from the atmosphere and dissolves into the ocean becomes…
Carbonic acid
Untreated sewage (Ex. NO3 and PO4) causes
Eutrophication
These live and thrive in EXTREME toxic environments and hot temps. in hydrothermal vents
Extremophiles
The measure of water quality that indicates cloudiness
Turbidity
The process in which microorganisms near hydrothermal vents make their food
Chemosynthesis
The variables that could contaminate water that were made by the EPA
Chemical, Biological, and Physical
What does EPA stand for?
Environmental Protection Agency
A physical variable that can affect organisms, and gasses can be dissolved in it
Temperature
A pH level of 7 shows the water sample is…
Neutral
Eutrophication is caused by increased levels of…
Nitrates and Phosphates (NO3 and PO4)
If the macroinvertebrates in water are very sensitive to pollution, the water is…
NOT polluted
When pollution is dumped directly into into water, it’s called…
point source pollution
To assure how effective water treatments are, you need to use
Reliable testing methods
Being trusted to sustaining a healthy environment is called…
Stewardship
