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Biology Junction

Macromolecules

For Students 9th - 12th Standards
In chemistry, organic means something contains a carbon base. A helpful presentation starts by defining macromolecules as large organic carbon molecules. Scholars answer questions about each topic on the associated worksheet. It covers...
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PPT
Mr. E. Science

Acids, Bases and Solutions

For Students 7th - 8th Standards
If you are not part of the solution, then you are part of the precipitate. The presentation covers solutions, suspensions, solubility, dissociation, and acid/base reactions. This is the 19th lesson in a series of 26.