Chapter 4: Mixtures or Pure Substances?

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Do you know what a mixture really is? Chem4kids does an excellent job of providing an explanation of mixture basics. Just about everything you combine is a mixture, from cakes, to concrete, to salt water.

 

 

http://www.exploratorium.edu/science_explorer/goflow.html

Here's a simple experiment you can perform to find out what happens when you add liquid soap to water . . . and then shake. The experiment is fast, it's easy, and it uses everyday materials. But be careful; it can be messy!

 

Classifying Matter

http://lc.brooklyn.cuny.edu/LeftBarFiles/FromAboutLC/Core71Files/matter.html

This site uses text and animated graphics to explain how scientists classify matter.

 

 

This interactive site investigates the standard particle model through four programs. Read the evidence for accepting this model and the mysteries yet to be solved. Learn why particles decay.