Fading Dot

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In this activity, learners play with a fuzzy-colored dot that has no distinct edges seems to disappear. As learners stare at the dot, its color appears to blend with the colors surrounding it. The illusion is created by the tiny jittering movements that your eyes are continually making. Activity includes step-by-step instructions and an explanation of the science behind the activity. A Spanish version of the activity is available.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
$1 - $5 per student
Age Range:
Ages 6 - 14
Resource Type:
Activity
Language:
English

Materials List (per student)

  • Blue paper (just enough to cut a dot about 1 inch [2.5 cm] in diameter)
  • Scissors
  • Pink paper (1 sheet)
  • Waxed paper
  • Optional: Glue stick or tape

Keywords

Subjects

  • Life Sciences
    • Human Senses and Perception
      • Vision
      • Perception

Audience

To use this activity, learners need to:

  • see
  • see color

Other

Foreign language versions of this resource:

This resource is part of:

Access Rights:

  • Free access

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