A reliable piece of information that can be verified through independent sources or procedures. A fact differs from an opinion. See opinion.
Phenomenon that has an actual, objective existence, regardless of whether it was observed or not.
When our observations are confirmed and found to be repeatable, they become facts. The repeatability of an observation means there is little doubt about it, though it cannot be accepted with absolute certainty. For example, everyone can observe that a student in the classroom is smiling. Therefore, this is a fact.
An observation that has been repeatedly confirmed. For example, there are 23 pairs of chromosomes in human cells.
level: Comprehensive (3) [ order by level] In science, an observation, or the result of an experimental manipulation.
order by term] level: Comprehensive (3) In science, an observation, or the result of an experimental manipulation.
a close agreement of a series of observations of the same phenomenon
a mini-hypothesis, subject to testing by repeated observation, etc
an actual state of affairs, which can be an historical event, or a social or natural phenomenon
an event so described that any observer will agree to the description
an experiment or observation that has been and can be repeated and confirmed by other scientists at any time
an honest observation
a phenomenon whose meaning is based on its verifiable characteristics
a property of a natural phenomenon
a scientific conclusion so well confirmed that no serious scientist doubts its validity
a theory that has been confirmed to such an extent that it would actually be less reasonable to deny it then it would to accept
a theory that has gained confirmation to such an extent that it is reasonable to offer provisional agreement, and that denying it would be unreasonable
a verifiable observation or phenomenon
A natural phenomenon repeatedly confirmed by direct observation.