Egg-stra Strength

Source Institutions

Source Institutions

Add to list Go to activity
Activity link broken? See if it's at the internet archive
In this physics activity, learners will investigate the strength of egg shells. They will attempt to stack books on top of inverted half egg shells to see how many they can hold, and the results may be surprising! This activity provides an excellent "Wow" moment while teaching an important scientific concept.

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
10 to 30 minutes

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

Age Range:
Ages 6 - 11

Resource Types:
Activity, Demonstration, Experiment/Lab Activity


Materials List (per group of students)

  • 4 egg shell halves (as nearly the same size as possible)
  • Books of varying size and weight (hardcover books work best)
  • A kitchen table or countertop


  • Engineering and Technology
    • Engineering
      • Architectural Engineering
  • Physical Sciences
    • Structure and Properties of Matter
      • Mass and Weight

Informal Categories

  • Food and Cooking


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Access Rights:

  • Free access



  • All rights reserved, COSI Columbus, 2009