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Exploring Magnetic Field Lines

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Exploring Magnetic Field Lines

In this activity, learners explore the magnetic field of a bar magnet as an introduction to understanding Earth's magnetic field. First, learners explore and play with magnets and compasses. Then, learners trace the field lines of the magnet using the compass on a large piece of paper. This activity will also demonstrate why prominences are always "loops."

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$10 - $20 per group of students

Age Range:
Ages 8 - 18

Resource Type:


Materials List (per group of students)


  • Earth and Space Science
    • Astronomy
    • Earth Structure
      • Earth's Magnetic Field
  • Physical Sciences
    • Electricity and Magnetism
      • Earth's Magnetic Field
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations


To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


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