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Today’s Agenda….10/3

Today’s Agenda….10/3. Bellringer: True or False Review Physical Changes Notes on Chemical Changes Physical and Chemical Changes Checklist. Today’s Goals…. I can classify changes in substances as physical or chemical. Chemical Changes. Study Pack #4. Observing a Chemical Change.

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Today’s Agenda….10/3

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  1. Today’s Agenda….10/3 • Bellringer: True or False • Review Physical Changes • Notes on Chemical Changes • Physical and Chemical Changes Checklist

  2. Today’s Goals… • I can classify changes in substances as physical or chemical.

  3. Chemical Changes Study Pack #4

  4. Observing a Chemical Change

  5. Chemical Changes • Change in appearance and composition • Result in a NEW substance • Not easily reversed

  6. Examples: • Wood burning • Iron rusting • Silver tarnishing • Cooking/Baking • Foods spoiling • Leaves changing colors in the fall

  7. Signs of a Chemical Change • How do you know a change has occurred? • Gas bubbles • Producing heat, light, smoke • Change in color • Change in odor • Sound

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