Category: Worksheets
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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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External Anatomy of the Grasshopper
Dissection guide for the grasshopper. Focuses on the external anatomy: legs, mouth parts, segments, includes a labeling and coloring.
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What Can Bird Beaks Tell You About Their Lifestyle?
Worksheet showing bird images where students determine their lifestyle based on the shape of their beaks and feet.
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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 cellular 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.


