What? I thought it was repeatable experiments.
Nope. Just a set of falsifiable theories. That's it. That's all.
Experiments are used to try to break a theory.
Science makes no use of supporting evidence. Only religions do that. It is not possible to prove ANY theory, scientific or otherwise, to be True. It IS possible to show a theory of science to be False. It is NOT possible to show a nonscientific theory to be False.
Some experiments are used to try to formulate a new theory, but a new theory can come from literally anywhere...even from dreams.
As long as the theory can be tested to see if it's false, and it continues to survive, it is automatically part of the body of science. It will remain so until it is falsified.
There is no voting bloc, no consensus, no peer review, no license or degree or credential, no government blessing of any kind, no politics, and no religion. Not even people. It is not any scientist or group of scientists. It is not any society or academy.
It is just the set of falsifiable theories themselves.
To be falsifiable, a theory must be able to be tested for it's null hypothesis (how can I break this theory?). The test must be definable, available, practical to conduct, specific, and produce a specific result. The theory itself must be tested.
Science has no theories about past unobserved events. There is no way to travel back in time to see what actually happened. No amount of supporting evidence will ever prove any theory True. Mountains of it mean absolutely NOTHING in the face of a single piece of falsifying evidence.
There are a couple of rules (not methods or procedures).
The first is called the internal consistency check. A theory is an explanatory argument (whether scientific or otherwise). No theory may contain or be based upon a fallacy. It must be a valid argument.
The second is called the external consistency check, and only involves theories of science (not nonscientific theories). No theory of science may conflict with any other theory of science. One or both MUST be falsified.
The only thing that uses supporting evidence is a religion. Science is only interested in falsifying evidence.
For example:
One theory of science is the 1st law of thermodynamics. Typically expressed as E(t+1) = E(t) - U where 'E' is energy, 't' is time, and 'U' is work (force over distance). In other words, it is not possible to create energy out of nothing or destroy energy into nothing. You can only increase energy through work.
If, someday, someone is able to show that you can indeed create energy out of nothing (without performing work), than the 1st law of thermodynamics would be falsified. There are no partials here. The theory is utterly dead at that point.
One theory of science that was falsified was the theory that Earth was the center of the Universe, and that everything orbited around a stationary Earth. That was falsified by Galileo, who pointed a telescope at Jupiter and saw it's moons going around Jupiter. The idea that Earth was the center of everything was falsified. It is no longer a theory of science. Anyone with a decent telescope can check this observation for themselves.
Note that this does NOT prove the Copernican model to be True. It only shows the Aristotle model to be False.
BTW, the Copernican model (that everything orbits a stationary Sun) was falsified, by Newton and Kepler. Planets, the Sun, and the various moons orbit each other, around a point called the barycenter. Each pair has a barycenter.
A new theory took it's place, created by Einstein. It simply says that there is no such thing as an absolutely stationary object. What you consider 'stationary', or zero speed, is strictly up to you. It's all relative. Even the barycenter is moving, relative to some other point you call 'zero speed'.
It is in this way that science progresses. A new theory is thought up, and it is tested to try to break it. If it survives, it is science until someone finds a way to break it.