Thursday, June 11, 2009

Unit 1 Lesson 2 Chemical vs Physical Changes

During the first part of this lesson we learned about physical properties. In this lesson we learned about chemical properties, chemical reactions, and chemical changes. TEK 6.7B

Vocab:
Chemical change-when you change more then just how something looks (physical change), it may change the way it looks but it also changes what it is, more then just a change in looks
Chemical changes are caused as a result of chemical reactions.
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Chemical reaction-a reaction that causes a substance to change into other substances; the atoms (smallest piece that makes up a substance) are rearranged inside the substance(s)
• After a chemical reaction, the properties of the new substances differ from the original substances.

Your student has completed lab activites about physical and chemical changes in class. Below they can challenge themselves to a quiz and check their understanding between physical and chemical changes. Good luck.
Chemical or Physical change quiz

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