uses evidence to construct testable explanations and predictions of natural phenomena
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observation
the act of noticing and describing events or processes in a careful and orderly way
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inference
A logical interpretation based on what a scientist already knows
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hypothesis
A scientific explanation for a set of observations that can be tested in ways that support or reject it
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controlled experiment
A test of a hypothesis in which only one variable is changed at a time, all others are left the same
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independent variable
a variable that the scientist changes
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dependent variable
a variable that changes due to the independent variable
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control group
a group within an experiment that is exposed to the same conditions except for the changes by the scientist, "testing group"
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qualitative data
data descriptive with characteristics
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theory
a thought out explanation for observations made
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bias
a particular based off of a personal opinion
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biology
the study of life
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stimulus
any signal in the environment that an organism responds to
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cell
the basic unit of structure in all living organisms
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DNA
a chemical used by all organisms to store information an organism needs to live, grow and reproduce
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sexual reproduction
a method of offspring production by 2 different parents
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asexual reproduction
a method of offspring production by one organism
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metabolism
the combination of chemical reactions that occur in an organism when they build up or break down material as they utilize energy to grow, develop and reproduce
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heredity
The passing of information for traits from one generation of organisms to the next generation
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homeostasis
The condition that occurs when an organism keeps their internal environment relatively stable even when external conditions change dramatically
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biosphere
all forms of life on earth
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evolution
Changes that occur in a group of organisms over time