DIY – Stethoscope Experiment

Hello STEM families, we hope you’re ready to learn an important STEM lesson today! We have a great activity that will require your children to get creative and to think outside the box. In this do-it-yourself activity your children will design, build, and test their very own stethoscope from recycled materials.

The Math

You can determine someone’s resting heart rate by counting the number of beats in 15 seconds and multiplying by four to get the beats per minute. To calculate a heart rate immediately after exercising it’s better to count the number of beats in 10 seconds and multiply that value by six to get their beats per minute. Heart rates will quickly slow down after exercising, so the heart rate should be measured immediately after a person has stopped exercising to be as accurate as possible.

STEM Lesson

Don’t forget to follow our social media pages if you want your children to learn another important STEM lesson during the month of May! This will include interesting blogs, important information about our camp themes, special promotions and contests!

Did you enjoy your DIY experiment? Share with us!

Check out all of our locations HERE. Over 45 locations across Ontario!

Register today and save your spot!


Science Buddies. (n.d). Make Your Own Stethoscope. Retrieved from