Tag: lab
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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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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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Stickleback Fish – An Evolution Story
Students to examine two lakes and compare the types of fish in each. They learn how lakes form, and why spines may be an advantage for some populations.
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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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Introduction to the Light Microscope
Students learn to use a basic light microscope by examining the structures and using a prepared slide of the letter “e” to practice focusing.
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Comparing Plant Cells
Students observe onion cells and elodea cells using the light microscope. Students compare structures found in each type of cell and create drawings.