Science has seven demarcation criteria. These criteria are:

• Verification
  The theory is shown in the outside world
• Falsification
  The theory can be shown to be incorrect
• Cumulative knowledge
  New knowledge is consistent with previous findings and theories
• Clearly described methods
  Replication is possible
• Clarity
  Unambiguous wording
• Predictability
  No post hoc explanations
• Knowledge can be revised