Curated OER
Microbial Spoilers: The Impact of Microorganisms on the Shelf-life of Milk
Students are inroduced to a commonly used microbial culturing technique. They explore the role of microorganisms in determining the shelf-life of food products.
Curated OER
Operating the spectrophotometer
Working in small groups, pupils explore the operation of spectrophotometer. Using the spectrophotometer, they investigate Beer's Law with everyday items.
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Global Awareness
Students read about how scientists are arriving at current theories of human origin and migration through mitochondrial DNA analysis. They then piece together a map showing the data from mitochondrial DNA analysis to plot the migration...
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Creatures in Torch Lake
Students investigate pond ecology. They gather water samples from various sources, add grass, and let it sit for a week. Afterward, using microscopes, they identify the microorganisms present in the sample.
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Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
Curated OER
Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
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Life's Big Questions: Where Did Life Come From?
Students explore the life forms that live in the hot springs of Yellowstone. They examine how microscopic creatures can survive in these extreme conditions. Students perform experiments to observe growth samples and demonstrate how a...
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