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Bendy Bones


Source Institutions

    Oregon Museum of Science and Industry

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Bendy Bones

In this activity (on pages 19-24 of PDF), learners soak chicken bones or eggshells in vinegar for several days. Learners observe what happens to the material as the acid dissolves the calcium that provides the strength to the material. The lesson includes information about calcium, calcium-rich foods that keep bones strong, and an explanation of how the acidic vinegar solution causes the bone or eggshell to become weak.

Quick Guide


Preparation Time:
10 to 30 minutes

Learning Time:
1 to 4 weeks

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 8 - 14

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

Language:
English

Materials List (per student)


  • Dish washing detergent and water
  • Plain vinegar (enough to cover half an egg shell or bone in a jar)
  • Small jars with lids (large enough to fit a bone or egg shells)
  • Paper towels
  • Option A: Chicken bones
  • Option B: Brief access to a microwave, eggshells

Subjects


  • Life Sciences
    • Human Body
      • Skeleton
      • Health and Nutrition
  • Physical Sciences
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
      • Chemistry of Life

Informal Categories


  • Food and Cooking

Audience


To use this activity, learners need to:

  • touch

Learning styles supported:

  • Involves hands-on or lab activities

Other


Includes alignment to state and/or national standards

Access Rights:

  • Free access

By:

Rights:

  • All Rights Reserved, OMSI, ©2004

Funding Source:

  • Regence Blue Cross/Blue Shield of Oregon

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