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CK-12 Foundation
Ck 12: Acids and Bases
[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will define acids and bases in terms of the ions that are produced when each type of compound is dissolved in water. They...
Museum of Science
The Atom's Family: Mighty Molecules
In this activity, students construct models of molecules using marshmallows and gum drops.