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Squash and Stretch

Source Institutions

    Oregon Museum of Science and Industry

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Squash and Stretch

This online activity has you order multiple images of a bouncing ball to show how, in animation, an object appears to lengthen as it falls, flatten as it hits the ground, and lengthen as it bounces up. This technique is used to produce the exaggerated look of an animated cartoon, but follows the rules of physics in that the object elongates along its axis of acceleration (stretch) and contracts when it meets resistance (squash). If images are out of place, they can be moved, rather than starting all over.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
Under 5 minutes

Estimated Materials Cost:

Age Range:
Ages 6 - adult

Resource Types:
Activity, Game


Materials List (per student)

  • Computer with internet access


  • Engineering and Technology
    • Technology
      • Information and Communication
  • Life Sciences
    • Human Senses and Perception
      • Vision
      • Perception
  • Physical Sciences
    • Motion and Forces
      • Acceleration
      • Projectile Motion

Informal Categories

  • Photography and Film/Video


To use this activity, learners need to:

  • see
  • use mouse

Learning styles supported:

  • Links STEM to other topics of interest such as arts and humanities


Includes alignment to state and/or national standards

This resource is part of:

Access Rights:

  • Free access



  • All Rights Reserved, OMSI, ©2005

Funding Source:

  • The Paul G. Allen Family Foundation


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