No, a hypothesis does not become a fact when proven. In the scientific method, a hypothesis is an educated guess or a proposed explanation for a phenomenon that is based on available evidence or prior knowledge. When scientists conduct experiments or gather data to test a hypothesis, they analyze the results to determine whether the evidence supports or refutes the hypothesis. If the results consistently support the hypothesis and it withstands rigorous testing, it can be considered a well-supported theory or a scientific principle.
However, in scientific terms, a "fact" refers to an observation that has been repeatedly confirmed and is generally accepted as true. Facts are based on empirical evidence and are considered to be objective and verifiable. Hypotheses, on the other hand, are subject to testing and revision based on new evidence or further experimentation. Even if a hypothesis is supported by existing evidence, it does not automatically become a fact. Scientific knowledge is always provisional and subject to change as new data and insights emerge.
It's important to note that the terms "fact" and "theory" have different meanings in everyday language compared to scientific contexts. In everyday language, a "fact" is often used to describe something that is indisputably true, while a "theory" may imply a speculative or uncertain idea. In science, however, a theory represents a well-substantiated explanation for a broad range of observations and is considered the most reliable and comprehensive form of scientific knowledge.