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Exploring Physical and Chemical Changes in Matter

Understand the differences between physical and chemical properties of objects through examples and evidence of changes in matter. Review key concepts and watch educational videos. Enhance your knowledge in chemistry!

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Exploring Physical and Chemical Changes in Matter

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  1. Warm Up 9/16 • Grab a yellow warm up sheet from stool • SWOD: PHYSICAL CHANGE pg 19 • Review your grades from the grade list

  2. Announcements Midterms due tomorrow @ 3pm

  3. Marshmallow • Give me some physical properties of the object • Tell me some chemical properties of the object

  4. Properties Review • 2 different types Read these examples 

  5. Physical and Chemical Properties

  6. Changes • When it actuallychanges • Physical Change: changes size, shape, color, &/or state of matter (but its still the same thing) • http://www.youtube.com/watch?v=6egx7jHxmwM • same atoms • Chemical Change: changes what it completely is, chemical reactions REACTS • gummy bear • Alkali Metals Reacting Video different arrangement of atoms  can’t get original atoms back Physical vs. Chemical

  7. Property vs. Change • Property = description or could change in the future • Change = change • 5 evidences of a chemical change • PCOGT – • Precipitate (solid forms) • Color change • Odor(smell) • Gas forms • Temperature change • Evidence of a chemical change • http://resources.educ.queensu.ca/science/main/concept/gen/g09/N.%20Sabet/precipitation.jpg

  8. What are the 5 evidences of a chemical change? • Precipitate • Color change • Odor/smell • Gas produced • Temperature change

  9. What is an acronym? What about a phrase to help you remember things • D.A.R.E • C.S.I. • Please excuse my dear aunt sally • Every Good Boy Does Fine • Kings play chess on fat guys stomachs • “Pirates Can Obtain Great Treasures”

  10. Come up with an acronym to help you remember these 5 changes Osos Can Produce Grande Turds Temperature change Color change Precipitate Odor/smell Gas produced

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