Circles or Ovals?

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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

Keywords

Subjects

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

Other

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Access Rights:

  • Free access

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