Earth was at the center of the universe and that the sun, moon, and plantets revolved around the Earth. (Aristotle)
consists of five basic steps. 1-identify the problem; 2-form a hypothesis that can be tested; 3-perform experiments to test the hypothesis; 4-record results, 5-analyze the results and create a conclusion.
the Earth revolves around the sun (Copernicus)
theories about the natural world and developed procedures to test ideas.
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