This page explains significant figures in measurements, focusing on their role in indicating certainty. It outlines rules for identifying significant figures, including the treatment of various zeros....This page explains significant figures in measurements, focusing on their role in indicating certainty. It outlines rules for identifying significant figures, including the treatment of various zeros. The text explains that insignificant zeros are placeholders and cannot be excluded. It also highlights the utility of scientific notation in representing significant figures accurately. The page concludes with a summary and review questions to reinforce understanding.