Think Fast!

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This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen. Another learner throws a cotton ball the person, who will likely blink thanks to the blink reflex. This activity is one of several activities featured on this webpage related to human reflexes.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
Under 5 minutes
Estimated Materials Cost:
free per group of students
Age Range:
Ages 8 - 18
Resource Types:
Activity, Demonstration
Language:
English

Materials List (per group of students)

  • Cotton balls (or rolled-up paper towels)
  • A transparent barrier (a wire screen, plastic or glass window)

Keywords

Subjects

  • Life Sciences
    • Human Body
      • The Brain and Nervous System
    • Human Senses and Perception
      • Vision
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations

Audience

To use this activity, learners need to:

  • see

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

  • Chudler Ph.D., Eric

Rights:

  • All rights reserved, Eric H. Chudler, 2009