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Chemistry

Chemistry. Physical Properties. I can describe this car by: Red and black Smooth texture Mass of 28 g Wheels are circular 89 cm3. The characteristics of a substance that can be observed without changing the identity of the substance. Color Shape Size Texture Volume Mass Density.

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Chemistry

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  1. Chemistry

  2. Physical Properties • I can describe this car by: • Red and black • Smooth texture • Mass of 28 g • Wheels are circular • 89 cm3

  3. The characteristics of a substance that can be observed without changing the identity of the substance. Color Shape Size Texture Volume Mass Density Physical Properties

  4. Let’s Review Density • If animal has a mass of 75 grams and has a volume of 25 cm3. What is animal’s density? • 75g/25cm3 = 3 g/cm3.

  5. Physical Properties

  6. Physical Change • A physical change is a change in a substance that does not change the substance into a different one.

  7. Physical Change

  8. How do I make a physical change?

  9. Chemical Properties • Describe how substances can form new substances. • Ability for wood to burn • Ability for metal to rust • Ability for material to explode

  10. Chemical Changes • The change of one substance into another substance. • Production of odor • Change in temperature • Change in color • Formation of bubbles • Formation of a solid

  11. How can I make the wood have a chemical change?

  12. What can be done with the pizza to have a chemical change?

  13. How can you tell a chemical change has taken place?

  14. Is it Physical or Chemical?

  15. Is it physical or chemical?

  16. Is it physical or chemical?

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