American Chemical Society
Middle School Chemistry: P H and Color Change
Learn about color change and pH as it relates to chemical changes.
Annenberg Foundation
Annenberg Learner: Watching the Seasons Change: Fall
This is an appropriate resource for investigating the impact seasonal change has on organisms. Have your students track the changes that come with fall by journaling. The online table addresses physical changes in the environment...
Kent State University
Kent State: Classification of Matter
Nice tree structure which shows the different separation technique needed for the two sides. Also gives examples of physical changes/separation techniques.
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