Can somebody explain heisenberg uncertainty principle to 14 year old me? I'm a young student that's very curious about physics and especially some physics theories. I've watched a TED video about the Heisenberg uncertainty principle, but I couldn't fully understand it and I'm looking for a fairly easy explanation if possible.
I've watched a TED video about the Heisenberg uncertainty principle, but I couldn't fully understand it and I'm looking for a fairly easy explanation if possible.

A comment points to Can the Heisenberg Uncertainty Principle be explained intuitively? and notably there are 17 answers there! It is possible that a few will be helpful to any given person.
Quantum mechanics is a set of theories and equations that predicts remarkably well what happens. That doesn't mean that anybody actually understands it. Many people know how to use it, and many many more people kind-of know roughly how to use it. And at least 17 (if not 17,000) people think they know how to explain it.
But don't let them fool you.
Take it from the master explainer. Per Richard Feynman:

Nobody understands Quantum Mechanics!


                
            


They behave in a way, that is like nothing you've seen before! Your experience with things you've seen before is inadequate, incomplete...


                
            


The behavior of things that are small is so fantastic, is so wonderfully… different. So marvelously different than anything that behaves on a large scale.