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Activity
Scholastic

Scholastic: Dirtmeister's Science Lab: That Sinking Feeling

For Teachers 6th - 8th
Simple experiments dealing with water temperature and density that you can complete in the lab and at home.
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Activity
My Science Site

Density Demonstration: Coke vs. Diet Coke [Pdf]

For Teachers 9th - 10th
Help students brainstorm and find a solution as to why Diet Coke floats and Coke sinks. Student will learn to define what density is as they engage in this creative lab. This resource is in PDF form; requires Adobe Reader.
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Website
My Science Site

Life Systems: Cells, Tissues, Organs

For Students 9th - 10th
Extensive site for teachers provides some helpful resources that pertain to plant and animal cells. Includes a microscope diagram as well as plant, animal and pond labs. Also contains links to structures and mechanisms, matter and...