What this lesson teaches
This activity helps students understand magnetic fields and their properties through visualization.
Science in Action
Can you finish magnet field lines in about 25 min?
Magnet Field Lines
You will understand magnetic fields and their properties through visualization.
Duration25 min
Age GroupAges 11–13
DifficultyIntermediate
SubjectScience
See how this hands-on lesson works
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What you need
- Bar magnet
- Iron filings (or sand)
- White paper
- Plastic ruler
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How the activity runs
- Gather materials: a bar magnet, iron filings, and a sheet of paper.
- Place the magnet on a flat surface and cover it with the paper.
- Sprinkle a thin layer of iron filings evenly over the paper.
The learning connection
Engaging with hands-on experiments allows students to see concepts in action. This active learning reinforces understanding and retention of scientific principles.
Try it with your learner
1. Place the cardboard on a flat surface. 2. Center the bar magnet underneath the cardboard. 3. Sprinkle a thin layer of iron filings evenly over the cardboard. 4. Gently tap the cardboard to help the filings settle. 5. Observe the pattern formed by the iron filings. 6. What did you notice about the shape of the magnetic field lines?