Here's a breakdown:
* Gravity is a fundamental force: It's a natural phenomenon that exists in the universe, pulling objects with mass towards each other.
* Newton's contribution: He formulated the Law of Universal Gravitation, which describes how this force operates. He figured out that the strength of gravity is directly proportional to the mass of the objects and inversely proportional to the square of the distance between them.
* Observing and understanding: He observed the motion of planets and the apple falling from a tree, which led him to develop this theory. He then used mathematics to explain these phenomena, showing how gravity holds everything together in the universe.
So, Newton didn't invent gravity, but he was the first to successfully explain and mathematically represent its workings, forever changing our understanding of the universe.