Which of the following are the three key hallmarks of science? select exactly three statements. select exactly three statements. scientific models must be structured so that they can be proved true by a single good observation or experiment. science progresses through the creation and testing of models of nature that explain the observations as simply as possible. modern science seeks explanations for observed phenomena that rely solely on natural causes. models must make testable predictions that will force us to revise or abandon the model if they do not agree with observations. scientific models are miniature representations of reality. science progresses through careful application of what is called the scientific method.