Tag: lab
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Investigation: Human Cheek Cells and Body Cells
This cell activity introduces students to cell size, scale, and specialization through a hands-on microscope investigation. Students prepare and observe a slide of their own cheek cells with simple laboratory instructions. Basically, students use a toothpick to gently scrape the inside of their mouth. Then, they swirl the toothpick in a drop of methylene blue…
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The Ultimate Lab Report Guide
Teaching students to write a formal lab report can feel… ambitious. Many of them are used to worksheets, short answers, and quick reflections, not multi-page scientific writing. But helping students learn to communicate like scientists is one of the most important skills we can give them. A well-written lab report shows not just what they…
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Lab: How Do Enzymes Work
Explore how enzymes work with this engaging lab. I redesigned this lab with freshman students in mind. The directions are simple. Students drop hydrogen peroxide onto raw liver, and observe the bubbling. The bubbles are oxygen as it is being released in the reaction. The lab handout includes a background section that explains how enzymes…
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Identifying Variables – Lab Station Activity
Students explore the scientific method by completing lab station activities where they identify the dependent and independent variables.
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Forensics Lab on Blood Spatter
Explore forensics with this lab on blood stain analysis. Use fake blood to determine how height affects the diameter of the stain
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Use Beets to Explore Membrane Permeability
Students test the effects of pollution on membrane permeability using beetroot cores.
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Investigating Sea Turtles and Sex Determination
Create a model of a turtle nest to record temperatures at different depths. The temperature of the nest will determine whether turtles are male or female.
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Investigation: Compare DNA from Different Samples
Students extract DNA from several samples of fruit, like strawberries and kiwi, and then discuss why some have more DNA than others.
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Label the Bones of the Appendicular Skeleton
Learn the bones of the legs and arms with this labeling activity. Practice reinforces learning completed during the lab portion of the skeletal system.