Sand Paper Rankings

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In this activity (2nd activity on the page), learners explore the sensitivity of their sense of touch. Learners arrange 10 pieces of sandpaper that have different grades (roughness) in order from smoothest to roughest. They compare their guesses to the correct grades written on the back of the papers to investigate how well their fingers (skin receptors) can detect different textures.

Quick Guide

Preparation Time:
5 to 10 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
$1 - $5 per group of students
Age Range:
Ages 4 - 18
Resource Type:
Activity
Language:
English

Materials List (per group of students)

  • Sandpaper - various grades
  • Wood blocks and glue (optional)
  • Scissors
  • Pen or pencil

Keywords

Subjects

  • Life Sciences
    • Human Body
      • The Brain and Nervous System
      • Muscles and Skin
    • Human Senses and Perception
      • Touch
      • Perception
  • Mathematics
  • The Nature of Technology
    • The Design Process
      • Problem Solving
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations

Audience

To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

  • Chudler, Ph.D., Eric H.

Rights:

  • All rights reserved, Eric H. Chudler, 2009