Materials Required
  • A small bar magnet
  • A paper
  • Some iron dust or small iron made materials like pins, paper clips etc. 

How to do it

  • Take a paper.
  • Put some iron clips on the paper.
  • Hold the paper yourself or ask the kid to hold the paper on the corners.
  • Then move the magnet on the backside of the paper.
  • ask the kid to observe what happes to the pins.
  • as you move the magnet under the paper, the pins will also move due to the magnetic field.
  • This will be  fun science activity for the kids.
  • Do the same activity with different material other than paper like a thich rubber sheet, or a plywood etc.
  • Let the kids observer what happens to the pins.

Explanation

Explain to your kids that the magnetic fields pass through the paper. So the pins are getting attracted to the magent even though the magnet is moved only on the other side of the paper.