Daphnia Medicine Science Fair Experiments Projects

Daphnia medicine science fair exeperiments daphnia science fair experiments and projects.

PROCEDURES

1. Gather all of the materials.
2. Set up equipment.
A) Put the microscope on a table.
B) Connect the microscope camera to the microscope.
C) Connect the video recorder to the MC.
3. Fill three beakers with 500 ml of room temperature water (208C).
4. Label each beaker:
A) Benadryl
B) Pseudoephedrine
C) Aspirin
5. Crush each pill into powder using a clean hammer and aluminum foil, and let dissolve in correct beaker.
6. While waiting for the pills to dissolve start control group.
7. Get a Petri dish and fill it half way with water with a large bore dropper into a second dry Petri dish.
8. Put 11-12 daphnia in just in case some die.
9. Separate the first daphnia from the group.
10. Put the first daphnia under the microscope. Write down tape counter start point.
11. Start recording once there is a clear view of the heart.
12. Stop recording after about ten seconds. Write tape counter stop point.
13. Repeat steps 9-12 with exactly 10 of the daphnia in this group.
14. Once the pills have dissolved conduct trials with all of the different chemicals.
A) Start by filling Petri dish half full of chemical solution to be tested.
B) Place 11-12 “new” daphnia into the chemical solution.
C) Repeat steps 9-13.
15. Clean up the mess.
16. Watch the video in slow motion and count all of the heartbeats per daphnia. Use the time code to determine which daphnia is in each test group.
17. Record data.
18. Graph averages.

RESULTS

The original purpose of this experiment was to determine the effect of Pseudoephedrine, aspirin, and Benadryl on the heart rate of daphnia.

The results of the experiment was that the Pseudoephedrine sped the daphnia’s heart up, while the other two drugs slowed it down.

CONCLUSION

My first hypothesis was that aspirin would increase the heart rate of daphnia. This hypothesis has been rejected since the aspirin was 1.2% below the control group.

My second hypothesis was that Pseudoephedrine would increase the heart rate of daphnia. My hypothesis was accepted since it was 0.8% higher then the control group.

My third hypothesis was that Benadryl would decrease the heart rate of daphnia. My hypothesis was accepted since it was 4.6% lower than the control group.

The results indicate that my first two hypotheses should be accepted, but the third was rejected.

Because of the results of this experiment, I wonder if the daphnia were subjected to household detergents or cleaners if they would it have a big effect on them?

If I were to conduct this project again I would use more than ten daphnia. 3rd party credit