State of body equilibrium characterized by a relatively constant and stable internal environment.
Data
factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation.
Experiment
an operation or procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law
Hypothesis
an interpretation of a practical situation or condition taken as the ground for action
science
knowledge or a system of knowledge covering general truths or the operation of general laws especially as obtained and tested through scientific method
theory
the analysis of a set of facts in their relation to one another