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37 Cards in this Set

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science
process of gathering knowlage about the natural world
physical science
study of matter && energy
matter
the "stuff" that everything is made of
energy
ability to do work
chemistry
the study of all forms of matter including how matter interacts w/ other matter
physics
looks at energy && how it effects matter//also studies different forms of energy
mediorology
study of earth's atmosphere ((high/low pressure, motion, && force
geology
study of the origin history && structure of the earth
biology
study of life((energy))
scientific method
a series of steps followed to solve a problem
ask questions and make observations
process of obtaining information
hypothesis
((educated guess)) explanaition based on prier scientific reasearch//observations that can be tested
controlled expeirement
compares results from a control group w/ the results from an experimental group
variable
the one factor in a group in a controlled experiment
data
any peice of information aquired through observation or experimentation
analyzing results
closes the scientific method//does your test's data support the hypothesis?? ((uses tables graphs && charts))
drawing conclusions
does your conclusion support your hypothesis or not??
model
a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept
physical modles
a modle you can touch && see
mathmatical models
uses mathmatical equations && data
conceptual models
system of ideas which you compare with familiar things to help illustrate a main idea
what are models used for??
to help illustrate && explain scientific theories
scientific theories
an explaination that ties many hypothesie together
Theory
can explain an observation but can also predict what will happen in the future
law
summary of many experimental results && observations/tells HOW things are done NOT why it happens
tool
anything that helps you complete a task
SI Units
international system of units ((metric system))
meter
*M*
unit of length
kilogram
*KG*
unit of mass
mass
amount of matter in an object
Liters
*l*
unit of volume
volume
the amount of space something occupies
v=_x_x_
v=LxWxH
density
ratio of the mass of a substance to the volume of a substance ((the amount of matter in a given volume))
d=_/_
d-m/v
temrature
mesure of how hot or cold something is ((measure of the average conetic energy of the partcles in an object
Kelvin
*K*
unit of temp.