Scientific Method
Information obtained through the senses; leads to a question.
Observation
a substance present at the start of the reaction.
Reactants
a property that depends on the type of matter not the amount.
Intensive
anything that has mass and occupies space
Matter
a measure of the amount of matter the object contains
Mass
a proposed explanation for an observation. (educated guess)
Hypothesis
a substance produced in the reaction.
Product
physical blend of 2 or more compounds
Mixture
definite shape and volume, not easily compressed
Solid
a measure of space occupied by the object
Volume
a method of testing an hypothesis
Experiment
a quality that can be observed/ measured w/o change substance composition.
Physical Property
a substance that contains 2 or more elements combined chemically
Compound
gaseous state of a substance at room temp.
Vapor
solid that forms and settles out of a liquid mixture
Precipitate
a well-tested explanation for a broad set of observations.
Theory
the ability of a substance to undergo a specific chemical change.
Chemical Property
uniform throughout, also known as a solution.
Homogenous
indefinite shape, a fluid, low compressibility
Liquid
Mass is nor to be created or destroyed
Law of conservation of energy
a concise statement that summarizes the results of many observations and experiments.
Scientific Law
a property that depends on the amount of matter in a sample.
Extensive
not uniform.
Heterogenous
indefinite shape and volume, easily compressed
Gas
The variable that is changed during an experiment. (independent variable)
Manipulated Variable