An anatomy project can display well-researched information pertaining to an interesting question about human anatomy and physiology, such as "Why do people cry?" or "Does stress increase a person's chances of catching a cold?" Another idea involves conducting an experiment on the impact of caffeine consumption on heart rate.Continue Reading
To set up an experiment investigating the impact of caffeine on heart rate, a student should first gather a group of 10 or more adults and assign half of them to a placebo group and half to a control group. To perform a true blind study, the adults should not be made aware of whether they are in the placebo or control group. The adults should receive instruction not to eat or drink anything at least two hours prior to the experiment to control for the impact of other foods or beverages on heart rate.
After having the adults rest for about five minutes, the resting heart rates of each adult should be recorded. Then, each adult drinks either a caffeinated or placebo beverage. It is important that the student makes sure to keep a record of which adults have the caffeinated or placebo drinks. After the adults drink their beverages, they are measured three times for pulse rate after five, 10 and 15 minutes have passed.
Once all information is recorded, the student can gather it onto a graph and present the findings to a science class or at a science fair.Learn more about K-12 Curriculum