Youtor
Physical and Chemical Changes
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=yIJ2qnUOOwQ
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 Cha... • 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 Se... • ~-~~-~~~-~~-~ • * • * • For more Life Science videos and summaries see, • http://www.moomoomath.com/Middle-Scho...
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