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Knipp - Chapters 1-3
introduction to physical science
38
Chemistry
8th Grade
12/10/2008
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Term
kilo-
 Definition
prefix for 1000
Term
hecto-
 Definition
prefix for 100
Term
deca-
 Definition
prefix for 10
Term
deci-
 Definition
prefix for 1/10
Term
centi-
 Definition
prefix for 1/100
Term
mega-
 Definition
prefix for 1,000,000
Term
micro-
 Definition
prefix for 1/1,000,000
Term
triple-beam balance scale
 Definition
instrument for measuring mass
Term
graduated cylinder
 Definition
instrument for measuring volume of a liquid
Term
meter stick
 Definition
instrument for measuring distance or length
Term
meter
 Definition
SI unit for length
Term
liter
 Definition
SI unit for volume
Term
density
 Definition
mass divided by volume
Term
matter
 Definition
anything that takes up space and has mass
Term
mass
 Definition
the amount of matter in an object
Term
chemistry
 Definition
the study of the properties of matter and how it changes
Term
atom
 Definition
the smallest part of an element that still has the characteristics of that element
Term
element
 Definition
substance made up of only one type of atom
Term
compound
 Definition
made up of two or more different elements chemically combined
Term
compound
 Definition
made up of two or more different elements chemically combined
Term
molecule
 Definition
smallest part of a compound that still has the characteristics of that compound
Term
chemical bond
 Definition
energy needed to hold two atoms together
Term
mixture
 Definition
two or more substances combined physically
Term
solid
 Definition
state of matter with a definite shape
Term
liquid
 Definition
state of matter with a definite density but no definite shape
Term
gas
 Definition
state of matter with no definite shape or density
Term
sublimation
 Definition
solid changing directly to a gas
Term
melting
 Definition
solid changing to a liquid
Term
freezing
 Definition
liquid changing to a solid
Term
condensing
 Definition
gas changing to a liquid
Term
boiling
 Definition
liquid changing to a gas
Term
quantitative data
 Definition
data made up of numbers
Term
qualitative data
 Definition
data made up of subjective observations
Term
control
 Definition
that part of an experiment that stays the same
Term
variable
 Definition
that part of an experiment that is changed
Term
weight
 Definition
the effect of gravity on mass
Term
thermometer
 Definition
instrument used to measure temperature
Term
celsius scale
 Definition
SI scale for temperature
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