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Strength of a Magnet

Experiments | 7-12 yrs | Video

REQUIREMENTS

  • A magnet
  • A glass container
  • Water
  • Safety pin

WHAT TO DO

First, bring the safety pin on the magnet. Then, pour some water into the jug and drop the safety pin in it. Place the magnet on the outside of the jug, on the side of the safety pin.

WHAT HAPPENS

When this is done, the safety pin follows the direction of the magnet, until it is above the level of the water.

WHY THIS HAPPENS

This happens because the force of the magnet also works through the glass of the water. If the jug was made of iron or steel, the safety pin would still come up, but with a lesser intensity, as the magnetic force would be absorbed by the sides of the jug.
TRY THIS
Use different variants of magnets, as well as different surfaces, such as a steel vessel or a vase and you will see how magnets react differently on different surfaces.

For more such science experiments and articles, visit Science for Kids.

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