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Winogradsky Column Unit: Chemical and Physical Change
This two-part activity leads Physical Science students, grades 8-12, to explore chemical change using Winogradsky Columns. Part 1 constructs student concepts concerning chemical and physical changes. Part 2 asks...
Hunting Bears with a Microscope
In this online activity, students use lichens and tardigrades (water bears) to investigate their use as bioindicators of key air pollutants. When lichens are exposed to some kinds of air pollutants, especially to sulfur...
Lactic Acid Bacteria
This on-line exercise is focused on lactic acid bacteria, a group of related bacteria that produce lactic acid as a result of carbohydrate fermentation. It includes a protocol for the enrichment of lactic acid bacteria...
Life in Extreme Environments: Who is on Top in the Food Chain and How Much do They Eat?
This lab activity encourages students to design experiments in order to gain some understanding of the feeding rates of Rotifers and/or Tardigrades. Students will use organisms collected locally or provided by the...
Creatures that Glow in the Night
This Wisconsin Center for Environmental Education activity (PDF) encourages students to practice experimental design and scientific writing through the study of bioluminescence. Students observe and experiment with...
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