from http://science-class.net/archive/science-class/Chemistry/changes_reactions.htm
These resources are generally appropriate for grades 5 - 9. In some cases they have been classified by grade level.
The groupings are general and somewhat arbitrary. As with anything in education; your milage may vary.
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Warm-Ups & Bell Ringers
Mostly for Teachers
Mostly for Students
Elementary:
Elementary - Middle School:
Middle School:
What is a balanced chemical equation?
Middle School - High School
How can you simulate the radioactive half-life of an element?
How can you tell which elements form chemical bonds?
For Teachers & Students
Elementary:
Elementary - Middle School:
Middle School:
High School:
Middle School:
Middle School - High School:
Classification of Matter (Edquest)
Matter & Chemical Change(Edquest)
Physical & Chemical Changes(Queensland Science)
Chemical Bonding (The Open Door)
Making Molecules (The Open Door)
Chemical Reactions (The Open Door)
Equations (The Open Door)
Knowing the Rules (The Open Door)
Identifying Products (The Open Door)