Tag: investigation
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Case Study: John Snow and the Origin of Epidemiology
This case study explores a time before the Germ Theory when doctors were uncertain how disease was spread. Current models, such as the humoral or miasma model could not fully explain how cholera infected some households, but not others. This case story explores London, England in 1854 after an outbreak of cholera which had…
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Investigation: Cellular Respiration
Students set up respirometers to measure the oxygen consumption of germinating peas in cold and warm water, and compared to a living organism.
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Investigation: What Factors Affect the Heart Rate of Daphnia
This investigation starts with a guided procedure where students gather data on the heart rate of daphnia when the organism is exposed to 1% ethanol. Daphnia are tiny crustaceans that are visible with the naked eye, though a microscope or stereoscope will be needed to see their heart rate.
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Investigation: Photosynthesis and Leaf Discs
As photosynthesis takes place, oxygen is released and causes the leaf to float. The number of floating disk is a measure of the rate of photosynthesis.
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Investigation: Enzymes Activity with Catalase
Have you ever noticed that when you pour hydrogen peroxide on a wound, it bubbles? The reason is that bacteria and your own tissue contains an enzyme that breaks down the peroxide. Peroxide splits into a molecule of water and a molecule of oxygen, which causes the bubbles. In a series of tests, students observe…
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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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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: 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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Investigation: How Can a Microscope Be Used to Make Observations?
Activity begins with an overview of different types of microscopes. Students learn to focus objectives, measure the viewing field, and create a wet mount.
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Investigation: Owl Pellets
Students open owl pellets to reveal the skeletons and fur of the owl’s last meal, and then reconstruct the skeletons using an bone chart.
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AP Biology – Investigation on Genetics with Plants
A modified AP Lab where students learn to grow plants from a seed, cross pollinate plants and conduct an inquiry investigation about plant genetics.
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Investigation: Modeling Diffusion
This inquiry investigation requires students to cut agar into 3 shapes (small, medium, large) and compare the rates of diffusion.
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Investigation: What Are the Processes of Science
Inquiry investigation where students develop hypotheses to answer a question about lung capacity, design an experiment, collect data, and draw conclusions.