Search results for: “cheap”
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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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Explore the Skeleton of the Rat with Coloring
Students learn the skeletal system by coloring a diagram of a rat skeleton. Worksheet includes descriptions and locations of each of the bones of the skeleton. The rat skeleton is similar to the human skeleton!
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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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Scary Pumpkin Statistics
Students predict the number of seeds in a pumpkin and then count the seeds. They use chi square analysis to accept or reject the null hypothesis.
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Colorful Activity for Learning How to Use a Micropipette
Students learn to use a micropipette. How to read a micropipette and how to draw and dispense different volumes.
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Modeling Survivorship Curves with Bubbles
A fun activity to model survivorship curves using bubbles. Students blow bubbles and time how long each survive under different conditions, then create a graph.
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Investigation: Viewing Stomata in Zebrina Plants
View the stomata of plants with this simple activity that uses tape and fingernail polish. Great for beginning biology students!
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Introduce Anatomy Terms with Chalk Outlines
Introduce anatomy by making a chalk outline and placing cards in the location of where the structures are located.
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Case Study: Dogs, SNPs, and Patellar Luxation
Students learn how a genetic polymorphism (SNP) is associated with a common problem in chihuahua dogs where their patella slips out of position.
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Urinary System – Label the Kidney and Nephron
I created this version of a labeling activity for students who are learning from home during the 2020 pandemic. You will not need to hand out papers with this version! Instead, students use their Chromebook to open Google Slides and drag the labels to the correct position. I usually assign this activity after students have…
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Virtual Diffusion Lab
The diffusion lab has been a yearly activity in my biology class as part of a unit on cells and cell transport. Students fill a bag with starch and water and then submerge it in a solution of iodine and observe what happens. The iodine diffuses across the plastic bag and turns the starch purple.…
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Explore the Senses
Students rotate between 6 stations where they perform tasks to perform related to the senses, such as two point discrimination and reaction time.
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Fortune Telling Fish
This activity is perfect for a first day or as an introduction to the scientific method. Though there isn’t quite as much cooperation as the “Saving Sam” activity, the fortune telling fish allows students to explore the nature of science together. The handout linked can be given to students, or you can also project them…
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Investigation: The Effect of Salt on a Potato
Students observe how the mass of a potato slice changes when soaked overnight in salt water. The activity is intended to be done as part of a lesson on osmosis and hypertonic and hypotonic solutions. Students will need about 15 minutes to set up their cups, weigh their slices and make predictions about what they…
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Investigation: How Can Diffusion Be Observed?
This investigation provides a hands-on way to observe what happens when a chemical moves across a semipermeable membrane. In this case, a cheap plastic bag serves as a model for the cell membrane and shows that iodine will move into the bag and turn the contents purple.