when something is noticed
proposed explaination for an observation
designed to test a hypothesis
consists of the measurements, observations or information gathered during experimentation
summary of results of an experiment
scientific journal
a hypothesis that has been supported by many different experiments
arises from a theory that has shown to be valid when fully tested over a long period of time
only one variable
ensure experiememt's safe
design a control experiment
large sample size
random selection
possible to replicate
double-blind testing
both the investigator and the participant are unaware of the nature of the treatment the participant is receiving.
a substance with no effect
the extent of our knowledge
basis of investigation (how well experiment is designed/carried out)
interpreting results
changes in the natural world(hypotheses must be constantly altered)
accidental discoveries
relate to whether conduct is right or wrong