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In this self-measuring activity, learners observe and record how many times a minute they blink, take a breath, and chew, as well as how many times a minute their heart beats. Learners are encouraged to take and record the same kinds of measurements for family members and friends. The "DId You Know" section offers some facts about how a child's heart rate differs from an adult's.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
1 cent - $1 per group of students

Age Range:
Ages 4 - 14

Resource Type:


Materials List (per group of students)

  • printout of data table or other paper to record data
  • watch
  • something to chew


  • Life Sciences
    • Diversity of Life
      • Animals
    • Human Body
      • The Brain and Nervous System
      • Circulation
      • Digestion
      • Respiration
  • Mathematics
    • Data Analysis and Probability
      • Data Collection
    • Measurement
      • Units of Measurement
      • Rate


To use this activity, learners need to:

  • see
  • read

Learning styles supported:

  • Involves teamwork and communication skills
  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



  • All rights reserved, The Regents of the University of California, 2007