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9/19 Activities and Notes

9/19 Activities and Notes. WARMUP: To yourself, answer if the e xamples are physical changes or chemical changes. Tearing paper Burning paper Breaking wood Campfire Mixing kool aid Cooking a cake. Physical change. Chemical change. Physical change. Chemical change. Physical change.

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9/19 Activities and Notes

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  1. 9/19 Activities and Notes

  2. WARMUP: To yourself, answer if the examples are physical changes or chemical changes • Tearing paper • Burning paper • Breaking wood • Campfire • Mixing kool aid • Cooking a cake Physical change Chemical change Physical change Chemical change Physical change Chemical change

  3. Property or Change? • Boiling point • 2 different liquids mix  bubbles • Food coloring in water • Burning an egg • It has a yellow color • It produced a smell Property Change Property Change Property Change

  4. Which of the following is an example of a chemical property of water? • A. Boils at 100 C • B. Is transparent • C. Has no odor • D. Reacts with calcium Is it still water (H2O) Transparent = see through/clear No smell Reacts = chemical reaction

  5. Which of the following is an example of a physical property of hydrogen? It • A. Is less dense than air • B. Reacts with oxygen • C. Is highly flammable • D. Forms hydrochloric acid PHYSICALPROPERTY

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

  7. 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”

  8. 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

  9. Draw this

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