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Amphibian Skin


Source Institutions

    Omaha's Henry Doorly Zoo

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Amphibian Skin

In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution. Learners soak one regular hard-boiled egg and one peeled hard-boiled egg in dyed water and then record how the eggs' circumference and appearance change after 24 hours. Learners investigate how the peeled egg represents amphibian skin and how amphibians are affected by pollution.

Quick Guide


Preparation Time:
5 to 10 minutes

Learning Time:
4 to 24 hours

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

Age Range:
Ages 4 - 14

Resource Types:
Activity, Demonstration, Experiment/Lab Activity, Lesson/Lesson Plan

Language:
English

Materials List (per group of students)


  • 2 hard-boiled eggs
  • Food coloring
  • Bowl with water
  • Plastic knife

Subjects


  • Life Sciences
    • Cells
      • Chemistry of Life
    • Diversity of Life
      • Animals
    • Ecology
      • Ecosystems
      • Populations
      • Human Impact
    • Evolution
      • Mechanisms of Evolution
  • Mathematics
    • Measurement
      • Circles
  • Physical Sciences
    • Chemistry
      • Chemistry of Life
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results

Informal Categories


  • Animals
  • Food and Cooking
  • Nature and Environment

Audience


To use this activity, learners need to:

  • see
  • see color
  • read
  • 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, Omaha's Henry Doorly Zoo, ©2009

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