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Properties of Matter

Properties of Matter. How do we tell different types of matter apart?. Salt or Sugar?. What is a property?. A distinctive attribute or quality of something An observation. Two Types of Properties. There are two types of properties: Physical Properties Chemical Properties.

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Properties of Matter

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  1. Properties of Matter

  2. How do we tell different types of matter apart?

  3. Salt or Sugar?

  4. What is a property? • A distinctive attribute or quality of something • An observation

  5. Two Types of Properties • There are two types of properties: • Physical Properties • Chemical Properties

  6. Physical Properties • Physical properties are properties that you can observe without changing the identity of the material. • For example: A rubber band is stretchy. If you stretch a rubber band, it is still a rubber band.

  7. Physical Properties • Physical properties are descriptive. • They include the appearance and behavior. • The appearance of the item is how it looks, feels, tastes, as well as any measurable characteristics like mass, volume, etc. • The behavior of an item is going to be how it reacts with certain other things. For instance, metals are usually attracted by magnets.

  8. Physical Properties • What are some physical properties of this honey? Yellow-ish Sticky sweet

  9. Common Physical Properties • Magnetic • Dense • Color • Size • Shape

  10. Physical Change • A change in the size, shape, or phase of matter is known as a physical change. • A physical change is one in which the basic identity of the objectdoes not change! • Another way to look at it is that a physical change is one which you can change back.

  11. Common Physical Changes • Physical changes change the appearance of a substance, but the chemical makeup does not change. • Examples of Physical Changes include: • Size • Shape • Phase (solid, liquid, gas) • Dissolving

  12. Chemical Properties • A characteristic that indicates it can undergo an chemical change.

  13. Common Chemical Properties • Flammability • Reactivity • Rust (Oxidation)

  14. Chemical Properties • What is a chemical property of this railroad spike?

  15. Chemical Change • The changing of one substance into another. • New substances are produced because of the breaking of chemical bonds. • ONE WHICH YOU CAN’T CHANGE BACK

  16. Detecting Chemical Change • A new substance is ALWAYS produced in a chemical change.

  17. New substances are produced by the making and/or breaking of bonds. Chemical Changes

  18. Indicators • There are five indicators that help us to know that a chemical change is taking place: • Unexpected Color Change • Energy Transfer • Precipitate Produced • Odor Produced • Gas Produced

  19. 1. Unexpected Color Change

  20. 2. Energy Transfer • Endothermic (gets cold) • Exothermic (gets hot) • Sound produced • Light produced

  21. 3. Precipitate Produced • Two liquids produce a solid • The solution sometimes looks cloudy or milky. • Solid falls to the bottom of the solution.

  22. 4. Odor Produced

  23. 5. Gas Produced

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