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Circles or Ovals?


Source Institutions

    The Exploratorium

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Circles or Ovals?

This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict? In this Exploratorium produced activity, do you see an oval or circle through a rolled up piece of white paper?

Quick Guide


Preparation Time:
Under 5 minutes

Learning Time:
Under 5 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 4 - adult

Resource Type:
Activity

Language:
English

Materials List (per student)


  • Two sheets of white paper
  • Transparent tape
  • A well-lit white screen, wall, or sheet of paper

Subjects


  • Life Sciences
    • Human Senses and Perception
      • Vision
      • Perception
  • Physical Sciences
    • Light and Optics
      • Reflection and Refraction
      • Sunlight and Color

Other


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Access Rights:

  • Free access

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