Repulsive Grape: Diamagnetism

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Do grapes, yes the grapes from the grocery store, move in the presence of a very strong magnet? You'l find out with this simple Exploratorium Science Snack (just make sure you have a very strong magnet).

Quick Guide

Preparation Time:
5 to 10 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
1 cent - $1 per student
Age Range:
Ages 8 - 18
Resource Types:
Activity, Experiment/Lab Activity
Language:
English

Materials List (per student)

  • Two large grapes
  • A soda straw
  • String that's 60 centimeters (2 feet) long
  • Tape
  • A neodymium (rare-earth) magnet—a 2 cm cube works well; the larger, the better
  • A stand to hang the grapes from—a ring stand works well, or you can make a stand using PVC

Keywords

Subjects

  • Physical Sciences
    • Electricity and Magnetism
      • Electromagnetic Fields
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations

Other

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Access Rights:

  • Free access

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