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Case Study: How Do Bacteria Become Resistant?
Students analyze data regarding methicillin and penicillin resistant bacteria, focusing how hospitals inadvertently drive the evolution of resistant strains. Each section of the case explores an aspect of dealing with bacteria, including sanitation, analyzing agar plates uses the Kirby-Bauer disk method and concludes with students suggesting plans for reducing the incidence of MRSA in hospitals. With…
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Investigation: What Are the Different Types of Cells?
Students look at cells from different domains and kingdoms; compare the size of cells and how their structure and shape differ depending on their function.
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Case Study – Chicago Cyanide Murders
Students investigate how cyanide interferes with the mitochondria and the role of oxygen in cellulular respiration; based on an historical event.
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Saving Sam – Icebreaker Activity
A cooperative activity where students devise a way to save Sam, a gummy worm trapped on a boat. Students use paperclips to try to get Sam’s life preserver on.
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Investigation: How Much Water Is In a Plant?
Students compare the amount of water in three types of plants: a root (carrot), a fruit (grape) and a leaf by weighing samples and dehydrating them overnight.
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Case Study – Are Invading Bullfrogs Harmful?
Students follow a story about an ecologist and a student who are studying the population size of bullfrogs in California. These amphibians are considered an invasive species in that area and have been causing the decline of native species. Students learn concepts related to community interactions and learn one species can cause the decline…
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Investigation: Temperature and Fish Respiration Rate
Students investigate what happens to the respiration rate of a fish as the temperature is decreased. Analyze data and create a graph.
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Investigation: Plop Plop Fizz Fizz
This investigation asks beginning students to develop a hypothesis about how quickly an effervescent tablet will dissolve and then design an experiment.
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Investigation: What Factors Influence Evolution
Explore the relationship between mutation, selection strength and the rate of evolution by using a simulation, which shows how a population evolves.
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Endangered Species Project
Students create a publication (website, infographic) to educate their classmates about a specific animal that is on the endangered species list.
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Label the Parts of the Plant and Animal Cell
Label a diagram of an animal cell and a plant cell; a diagram showing how proteins are produced by ribosomes, and finally packaged by the golgi apparatus.
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Scientific Method – Answering Causal Questions
Examine a flow chart which considers a question about water evaporation; hypotheses are proposed to test the effects of air flow, light, and temperature.
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Case Study – A Tiny Heart (old version)
Students examine the symptoms of a newborn baby who has a problem with his heart and suggest treatment options.
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How Can the Scientific Method Solve Real-World Problems?
Read short stories about how scientists used the scientific method to solve real problems, such as the discovery of penicillin and the cause of beriberi.