An organized way of gathering and analyzing evidence to learn about the natural world.
the act of noticing and describing events or processes in a careful , orderly way
logical conclusion based on observations
possible explanation for a set of observations or possible answer to a scientific question
an experiment in which only one variable is manipulated at a time
The experimental factor that is manipulated; the variable whose effect is being studied.
variable that changes as a result of a change in the independent variable
the group that does not receive the experimental treatment.
information gathered from observations
a decision about the hypothesis based on the results of the experiment
an explanation using an integrated set of principles that organizes observations and predicts behaviors or events
a particular preference or point of view that is personal rather than scientific
the study of life
the ability of a living thing to keep conditions inside its body constant
the passing of traits from parent to offspring
a theory that explains how random changes in genetic material and competition for scarce resources cause species to change gradually
the part of earth where life exists
all of the chemical reactions that occur within an organism
a change in an organisms surroundings that causes the organism to react
a complex molecule containing the genetic information that makes up the chromosomes
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