Bronx Cheer Bulb

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In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners blow air through their lips. However, learners will discover that the only thing vibrating is themselves. Use this activity to explore different forms of light as well as visual perception.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
free per student

Age Range:
Ages 8 - 14

Resource Type:


Materials List (per student)

  • A digital radio or clock radio that uses light-emitting diodes (LEDs) These have red numbers. OR A circuit tester with an LED on it OR A neon glow lamp available from your local hardware store, such as a GE Guide lamp, and an extension cord. (Any nightlight labeled "1/4 watt" has a neon glow lamp in it)
  • Other light sources, such as incandescent lightbulbs


  • Engineering and Technology
    • Technology
  • Physical Sciences
    • Vibration and Waves
  • Life Sciences
    • Human Body
    • Human Senses and Perception
      • Vision
      • Perception
  • Mathematics
    • Measurement
      • Rate
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations


To use this activity, learners need to:

  • see

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access