Soak It Up: Understanding Amphibian Permeability

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In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it. Learners will also discover how different body coverings affect permeability. Learn why and how this affects their body, and what you can do to protect them in the wild. Thin skin is in, dirty environments are not!

Quick Guide

Preparation Time:
45 to 60 minutes

Learning Time:
1 to 7 days

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 6 - adult

Resource Types:
Activity, Demonstration


Materials List (per group of students)

  • Hard boiled eggs (prepared prior to the event/class)
  • Food coloring (dark colors work best)
  • Measuring tapes (or you can use string and rulers)
  • Clear cups
  • Water
  • Knife


  • Life Sciences
    • Diversity of Life
      • Animals
  • Physical Sciences
    • Chemistry
      • Solutions

Informal Categories

  • Animals
  • Nature and Environment


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access