Classifying Matter:
Elements, Compounds, and Mixtures
Pure Substances
 A sample of matter that has definite chemical and physical
properties.
Elements
 Small unit of matter
 Elements are a pure substance represented by chemical
symbols
 Example: Oxgyen  O; Car...
Elements
 pure substance that cannot be separated into simpler
substance by physical or chemical means.
Elements
 The following known elements make up MOST of the
Earth’s solid surface, living matter, oceans, and atmosphere.
...
Compounds
Pure substance composed of two or more different elements
joined by chemical bonds.
 Made of elements in a spec...
Can you identify the following?
You will be shown a series of photos. Tell if each photo
represents an item composed of an...
Element or Compound?
Copper
Element or Compound?
Copper
Element or Compound?
Table Sugar
Element, Compound, or Mixture?
Table Sugar
Element or Compound?
Diamond
Element or Compound?
Diamond
Element or Compound?
Salt
Element or Compound?
Salt
Element or Compound?
Neon Gas
Element or Compound?
Neon Gas
PureWater
Element or Compound?
Element or Compound?
PureWater
Aluminum
Element or Compound?
Element or Compound?
Aluminum
Silver
Element or Compound?
Element or Compound?
Silver
 For extra help, check out:
www.chemistryforkids.net
SCI 6A Lesson Three PowerPoint
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SCI 6A Lesson Three PowerPoint

  1. 1. Classifying Matter: Elements, Compounds, and Mixtures
  2. 2. Pure Substances  A sample of matter that has definite chemical and physical properties.
  3. 3. Elements  Small unit of matter  Elements are a pure substance represented by chemical symbols  Example: Oxgyen  O; Carbon  C
  4. 4. Elements  pure substance that cannot be separated into simpler substance by physical or chemical means.
  5. 5. Elements  The following known elements make up MOST of the Earth’s solid surface, living matter, oceans, and atmosphere. C – Carbon (necessary for life) Si - Silicon H - Hydrogen N - Nitrogen O – Oxygen (most abundant) Fe - Iron Na - Sodium
  6. 6. Compounds Pure substance composed of two or more different elements joined by chemical bonds.  Made of elements in a specific ratio that is always the same  Has a chemical formula  Can only be separated by chemical means, not physically
  7. 7. Can you identify the following? You will be shown a series of photos. Tell if each photo represents an item composed of an element or a compound. Review:  An element contains just one type of atom.  A compound contains two or more different atoms joined together.
  8. 8. Element or Compound? Copper
  9. 9. Element or Compound? Copper
  10. 10. Element or Compound? Table Sugar
  11. 11. Element, Compound, or Mixture? Table Sugar
  12. 12. Element or Compound? Diamond
  13. 13. Element or Compound? Diamond
  14. 14. Element or Compound? Salt
  15. 15. Element or Compound? Salt
  16. 16. Element or Compound? Neon Gas
  17. 17. Element or Compound? Neon Gas
  18. 18. PureWater Element or Compound?
  19. 19. Element or Compound? PureWater
  20. 20. Aluminum Element or Compound?
  21. 21. Element or Compound? Aluminum
  22. 22. Silver Element or Compound?
  23. 23. Element or Compound? Silver
  24. 24.  For extra help, check out: www.chemistryforkids.net

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