ADVERTISEMENT |  REMOVE ADS

Does Caffeine Increase Heart Rate?

Introduce your pupils to the properties of caffeine and its effects on the body with this printable science activity. Pupils will monitor the heart rate of experiment participants while they consume non-caffeinated and caffeinated beverages.
Grades
5 |
6 |
7 |
8
Subjects
Type
Lesson (926)

Activity (2,892)

CREATE NEW FOLDER
Cancel

Does your mom or dad like to have a cup or two of coffee in the morning? Does your sister have a cola habit? If so, they can help you with this experiment, aimed at discovering whether caffeine affects the rate at which a heart beats.

The basics of your experiment would be to measure and record the resting heart rate of your subject. You'd then have that person drink a cup of coffee, some soda, or other beverage containing caffeine. You can determine the amount of caffeine they'll be ingesting by reading the label of the soda or coffee can.

Wait for 20 minutes after the beverage has been consumed, and then recheck the resting heart rate. Just be sure that your subject sits quietly during and after the time he or she is consuming the caffeine. Exercising would cause the heart rate to increase, with or without the benefit of caffeine.

Ideally, you could do this with three or four different people, and conduct three trials for each person. Record your results, and see whether the caffeine affected their heart rates.

Excerpted from

The Complete Idiot's Guide to Science Fair Projects
The Complete Idiot's Guide to Science Fair Projects
Nancy O'Leary and Susan Shelly
This book contains great information for different kinds of science fair projects.


Your Free Gift

The Ultimate Back-to-School Guide

Teachers are always thinking about their students, but devotion to their progress shouldn’t come at the expense of your own. That’s why we’ve created an “Ultimate Back-to-School Guide” for teachers based on our nine future-ready skill domains.

What you can expect from this guide:

  • Learn 9 ways to become a better teacher by developing a positive mindset.
  • Links to dozens of free resources curated by our experts to help you both in and outside the classroom.
  • Clear steps to improve your teaching and general well-being.

Sign up for a premium membership to get your Ultimate Back-to-School Guide absolutely free!

SIGN UP TO CLAIM YOUR FREE GIFT

ultimate back-to-school guide for teachers

Register