The ongoing process of discovery in science; the diverse ways in which scientist study the natural world and propose explanations based on evidence they gather.
possible explanation for a set of observations or possible answer to a scientific question; must be testable
an experiment in which only one variable is manipulated at a time
facts, figures, and other evidence gathered through observations
a repetition of an experiment to gather additional data and determine whether the experiment's results support the hypithesis
repeating an experiment several times for accuracy; an attempt to repeat a scientist's experiment by a different scientist or group of scientists