20 terms

Scientific Methodology

STUDY
PLAY
observation
the act of noticing and describing events or processes in a careful , orderly way
inference
logical interpretation based on observations
hypothesis
possible explanation for a set of observations or possible answer to a scientific question
controlled experiment
an experiment in which only one variable is manipulated at a time
independent variable
The experimental factor that is manipulated; the variable whose effect is being studied
dependent variable
variable that changes as a result of a change in the independent variable
control group
the group that does not receive the experimental treatment.
data
information gathered from observations
conclusions
a decision about the hypothesis based on the results of the experiment
theory
an explanation using an integrated set of principles that organizes observations and predicts behaviors or events
bias
particular preference or point of view that is personal rather than scientific
biology
the study of life
DNA
molecule in which the genetic code is written
stimulus
signal to which an organism responds
homeostasis
process of maintaining a relatively stable internal environment
metabolism
combination of the chemical reactions through which an organism builds up or breaks down materials
biosphere
living planet
asexual reproduction
a single organism produces offspring identical to itself
sexual reproduction
cells from two parents unite to form the first cell of a new organism
science
organized way of gathering and analyzing evidence about the natural world