Afterimage

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In this optics activity, learners investigate afterimages. Learners draw a simple picture using a green marker, stare at it for about 30 seconds, and then look at a blank piece of paper to see an afterimage in magenta. Learners can experiment by using different marker colors. [Activity is publicly available through a web crawler capture on Archive.org.]

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
1 cent - $1 per student
Age Range:
Ages 6 - 11
Resource Type:
Activity
Language:
English

Materials List (per student)

  • 2 pieces of white paper
  • colored markers (red, green, and blue)

Keywords

Subjects

  • Life Sciences
    • Human Senses and Perception
      • Vision
  • Physical Sciences
    • Vibration and Waves
      • Light and Optics
    • Light and Optics
      • Sunlight and Color
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations

Audience

To use this activity, learners need to:

  • see
  • see color
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

Rights:

  • All rights reserved, WGBH Educational Foundation, 2002

Funding Sources:

  • National Science Foundation, 0229796
  • Corporation for Public Broadcasting
  • The Arthur Vining Davis Foundation
  • PBS