Water Fleas & Fluoride Science Fair Projects

The science fair projects on the effects of fluoride on daphnia begins here.....

PROCEDURES

1. Gather materials.
2. Have 5 groups of Daphnia with 20 in each group.
3. Put each Daphnia group in their own petri dish.
4. Put 40 mL of water in the petri dishes.
5. Put 1% amount of fluoride in the A group
6. Check the Daphnia under the microscope right away, then every15 minutes until 1 hour to see if the heart is still beating.
7. Put .1 % of fluoride in the B group.
8. Check the Daphnia under the microscope right away, then every 15 minutes until 1 hour to see if the heart is still beating.
9. Put .01 % of fluoride in the C group.
10. Check the Daphnia under the microscope right away, then every 15 minutes until 1 hour to see if the heart is still beating.
11. Put .001% of fluoride in the D group
12. Check the Daphnia under the microscope right away, then every 15 minutes until 1 hour to see if the heart is still beating.
13. Put no fluoride in the E group (Control group).
14. Repeat steps 3-13 one more time.
15. See how much fluoride is safe for Daphnia survival

RESULTS

The original purpose of this experiment was to determine if the amount of fluoride affects the survival rate of Daphnia.

The results of the experiment were that .01 % of fluoride is safe for Daphnia survival.

CONCLUSION

My hypothesis was that .01% of fluoride would kill the Daphnia.

The results indicate that this hypothesis should be rejected.

Because of the results of this experiment, I wonder if this amount of fluoride would affect shrimp, fish, or small mammals.

If I were to conduct this project again I would