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Physical and Chemical Changes

In this video I would like to talk about physical and chemical changes. Physical changes are changes in appearance only. A new substance is not created and new chemical bonds are .not formed or broken. For example, take this stack of paper, and wading it into smaller pieces is a physical change.It still has the same properties as the original paper. Cutting someone's hair is a physical change. The hair has the same properties as the original hair. Phase changes are physical changes. When ice goes to solid,liquid ,then a gas and back it is a physical change. Most mixtures are a physical change. Mixing salt and water is a physical change because you can separate it later. Chemical changes on the other hand create a new substance. It involves breaking or making new chemical bonds. between atoms. Chemical changes leave behind clues or indicators of a chemical change. Here are 5 indicators of a chemical change. First if you see burning or fire it is a chemical change. A temperature change without heating or cooling is a chemical change. An explosion is a chemical change. They are also pretty cool. A change in color is a chemical change. A change in odor is a chemical change and anytime you have bubbles of fizzing you have a chemical change. Thanks for watching physical and chemical changes,, MooMooMath and Science uploads a new Math and Science video everyday. Updated video Physical and Chemical Changes    • Examples of Physical and Chemical Changes ...   More on Physical and Chemical Changes http://www.moomoomathblog.com/2017/03... Physical and Chemical Properties http://www.moomoomathblog.com/2023/01... What is a chemical Reaction? https://moomoomath.com/what-is-a-chem... ~-~~-~~~-~~-~ Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"    • My new book-Study Skills Teacher's Secret ...   ~-~~-~~~-~~-~ * * For more Life Science videos and summaries see, http://www.moomoomath.com/Middle-Scho...