* Can be observed and measured. The scientific method relies on empirical evidence, which means that it must be able to be observed and measured. This excludes phenomena that are purely subjective or that cannot be objectively measured.

* Are consistent and repeatable. Scientific findings must be able to be replicated by other researchers. This helps to ensure that the results are not due to chance or error.

* Are falsifiable. A scientific theory must be able to be proven wrong. This means that there must be possible observations or experiments that could disprove the theory.

Let me know if you have any other questions!