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Start nowLesson 8
CHEMICAL CHANGE
CHEMICAL CHANGE
MINESEC DISTANCE LEARNING
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A student observes that when two clear solutions are mixed, a solid precipitate forms. Is this a physical or chemical change, and why?
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In this lesson, [01:10] welcomes students to a chemistry session, outlines the topics of energy application, action of heat on substances, physical and chemical changes, and states of matter. It then reviews a previous assignment about air being matter and examples of physical changes, providing correct answers. Then the lesson explains what a chemical change is about a permanent change where a new substance occurs, lists examples from burning wood to photosynthesis, and shows the differences between physical and chemical changes..
