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science vocab

law of conservation of mass mass cant be created nor destroyed, just change forms
reactant the materials of the reaction that cause it to happen
product the materials formed from the reaction
flammabilty able to burn , or catch on fire
precipitate material formed as a result of chemical change
phase change changing from one state of matter to another
chemical change reaction that forms a new substance, evidence includes: formation of precipitates, change of temperature, change of color, and formation of gas (bubbles)
physical property characteristics that can be observed with your sense or measured
period a row on the periodic table
group or family a column on the periodic table
atomic mass the average number of protons and neutrons in an atom
element a pure substance that has the 2 or more of the same substances
compound two or more elements chemically bonded, example : water
conductivity able to transmit electricity, heat
unconformity when a rock disturbs a series of undisturbed layers
law of superstition in an undisturbed set layer of rock the younger rock is on the bottom
half-life when the amount of a radioactive element is decreased by half after a period of time
absolute dating using radioactive elements to determine the EXACT age of a fossil, rock, or artifact.
relative dating using the law of superstition and index fossils to give an estimate of a fossil or rock layers
point source pollution that comes from a single, identifiable site
non point source pollution pollution that comes from many places of unidentified source
contaminant (pollutant) something that makes water no longer suitable for use
water treatment plan the act or process of making water more potable or useful, as by purifying, clarifying, softening, or deodorizing it.
estuary the tidal mouth of a large river
groundwater water held underground in the soil or in crevices in rock
solvent able to dissolve other substances.
reservoir a large natural or artificial lake used as a source of water supply
brackish water water slightly salty, as is the mixture of river water and seawater in estuaries
shore (inter-tidal zone) the area between the land and sea that is covered by water at high tide
polarity the state of having two opposite or contradictory tendencies, opinions, or aspects
impermeable not allowing fluid to pass through
aquifer a body of permeable rock that can contain groundwater
cold seep an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool
open ocean (pelagic zone)
river basin/ water shed
glacier/ice cap
ocean current
deep ocean (benthic zone)
Created by: 8370447