Natural and Processed Materials



What's in a Substance?

Atoms, Molecules, Compounds and Elements


Things you need to know:

  • List the arguments for and against classifying dissolving as a chemical change rather than a physical change in the forum

Resources that will help you

  • Basic Information
  • Your Science Alive 2 Book and CD
  • Read page 76
  • Purdue University Solutions
  • Digging Deeper (optional)
    • View this animation as well. An ion is an atom or group of atoms that have gained or lost one or more electrons.
    • Email any good sites you find

Tasks you need to complete

  • The Forum









Updated August 13, 2007


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