Answer:
New evidence can change an existing theory by challenging or contradicting the previously accepted ideas or hypotheses. When new data is collected through scientific experiments and observations, it may introduce variables that were not considered before. These variables can lead to the formulation of new hypotheses or the modification of existing ones. The scientific method is crucial in this process as it allows researchers to systematically test and analyze the new evidence. Experiments are designed to control as many variables as possible to isolate the effect of the new evidence on the existing theory. The results of these experiments can then be used to draw new conclusions that either support, modify, or even disprove the existing theory. Overall, new evidence provides an opportunity for scientific theories to evolve and become more accurate, reflecting the progress of scientific understanding.
Step-by-step explanation: