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Chemical & Physical Properties of Matter

Chemical & Physical Properties of Matter. Chemical Properties. Characteristics that are observed ONLY when a substance changes into a different substance. Chemical Properties. Types of Chemical Properties: Combustible/flammable : able to burn. Chemical Properties.

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Chemical & Physical Properties of Matter

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  1. Chemical & Physical Properties of Matter

  2. Chemical Properties • Characteristics that are observed ONLY when a substance changes into a different substance

  3. Chemical Properties • Types of Chemical Properties: • Combustible/flammable: • able to burn

  4. Chemical Properties • Types of Chemical Properties: • Combustible/flammable: • able to burn • Examples & Facts: • all chemicals come with a label that identifies their level of flammability

  5. Chemical Properties • Types of Chemical Properties: • Combustible/flammable: • able to burn • Examples & Facts: • oxygen & hydrogen are very flammable gases • carbon dioxide is not a very flammable gas

  6. Chemical Properties • Types of Chemical Properties: • Reactivity: • how easily a substance reacts with another substance

  7. Chemical Properties • Types of Chemical Properties: • Reactivity: • how easily a substance reacts with another substance • Examples & Facts: • many chemicals react with water or oxygen • all chemicals come with a label that identifies their level of reactivity

  8. Chemical Properties • Types of Chemical Properties: • Reactivity: • how easily a substance reacts with another substance • Examples & Facts: • corrosion: slow reaction & wearing away of metals (rusting, tarnishing)

  9. Physical Properties • Characteristics that can be observed without changing the substance into something else

  10. Physical Properties • Types of Physical Properties: • color • texture • odor • taste • hardness • magnetic • boiling, melting, & freezing points

  11. Physical Properties • Types of Physical Properties: • Luster: • shininess or dullness

  12. Physical Properties • Types of Physical Properties: • Luster: • shininess or dullness • Examples & Facts: • most metals are shiny • diamonds have a lot of luster • many minerals are dull

  13. Physical Properties • Types of Physical Properties: • Brittleness: • how easily a substance breaks into pieces

  14. Physical Properties • Types of Physical Properties: • Brittleness: • how easily a substance breaks into pieces • Examples & Facts: • very brittle substances may crumble or break with very little force

  15. Physical Properties • Types of Physical Properties: • Brittleness: • how easily a substance breaks into pieces • Examples & Facts: • many rocks & minerals are brittle • chalk is brittle because it crumbles easily

  16. Physical Properties • Types of Physical Properties: • Malleable: • can be pounded into shapes

  17. Physical Properties • Types of Physical Properties: • Malleable: • can be pounded into shapes • Examples & Facts: • aluminum is very malleable • clay is also malleable • substances that are malleable are usually not very brittle

  18. Physical Properties • Types of Physical Properties: • Ductile: • can be pulled out into a long wire

  19. Physical Properties • Types of Physical Properties: • Ductile: • can be pulled out into a long wire • Examples & Facts: • substances may be both malleable & ductile • copper is very malleable & ductile • substances that are ductile are usually not very brittle

  20. Physical Properties • Types of Physical Properties: • Conductive: • can transmit heat and/or electricity

  21. Physical Properties • Types of Physical Properties: • Conductive: • can transmit heat and/or electricity • Examples & Facts: • a substance may conduct heat, electricity, neither, or both • most metals are good conductors

  22. Physical Properties • Types of Physical Properties: • Conductive: • can transmit heat and/or electricity • Examples & Facts: • pots & pans are made out of metals that are good heat conductors

  23. Physical Properties • Types of Physical Properties: • Soluble: • can be dissolved in a liquid

  24. Physical Properties • Types of Physical Properties: • Soluble: • can be dissolved in a liquid • Examples & Facts: • substances that are “water- soluble” will dissolve in water • salt & sugar are soluble in water • substances that don’t dissolve are “insoluble”

  25. Properties Practice • Choose an object from the “Bucket of Junk.” • Record the object’s name in the data table. • Check off each of the properties you observe and infer that object to have. • Return the object to the bucket and choose another. • Continue until you’ve identified the properties of 6 objects.

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