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Diseases Science Fair Project

The Effect of OTC Medications on Daphnia

Hard
The Effect of OTC Medications on Daphnia | Science Fair Projects | STEM Projects
Let's explore the effects of three common over-the-counter medications on the heart rate of daphnia. We'll use a microscope and video camera to measure the heart rate of the daphnia before and after the medications are administered.

Hypothesis

The hypothesis is that Pseudoephedrine will increase the heart rate of daphnia, aspirin will increase the heart rate of daphnia, and Benadryl will decrease the heart rate of daphnia.

Method & Materials

You will set up a microscope and video camera, fill three beakers with water, dissolve pills in each beaker, and record the heart rate of the daphnia before and after the medications are administered.
You will need a microscope, video camera, Pseudoephedrine pill, Benadryl pill, Aspirin Pill, video tape, three Petri dishes, and three beakers.

Results

The results of the experiment showed that Pseudoephedrine sped the daphnia's heart up, while the other two drugs slowed it down. This suggests that the hypothesis was accepted for Pseudoephedrine and Benadryl, but rejected for aspirin.

Why do this project?

This science project is interesting because it explores the effects of common over-the-counter medications on a tiny aquatic creature. It also provides an opportunity to use a microscope and video camera to measure the heart rate of the daphnia.

Also Consider

Variations to consider include testing the effects of different concentrations of the medications, or testing the effects of different types of medications.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!
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