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Magnets Presentation. For 4th. Grade. Vocabulary. Magnetic Field: an invisible force that rounds a magnet. Magnetite: A stone that has magnetic properties Magnetic Poles: The magnetic force located in the oposite ends of a magnetic object. The Use of Magnets.

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Magnets presentation

Magnets Presentation

For 4th. Grade


Vocabulary
Vocabulary

  • Magnetic Field: an invisible force that rounds a magnet.

  • Magnetite: A stone that has magnetic properties

  • Magnetic Poles: The magnetic force located in the oposite ends of a magnetic object


The use of magnets

The Use of Magnets

In The Ancient Greek Times


Magnets use in our society
Magnets Use in Our Society

  • Magnets can be natural

  • There are also electromagnets

  • The last ones are used in some industries

  • They can be used also in transportation.


The earth is a giant magnet

Our planet is a magnet

It has two power poles called North and South Poles

Like a magnets this poles could attract or repel

The Earth is a giant magnet


Magnetism is a form of energy

Magnets are objects that attract things made of metal.

There are bar magnets and shoe magnets

Horse shoe are the stronger magnets

Magnetism is a Form of Energy


History about magnets
History about magnets

  • The ancient Greeks discover and use the first magnets

  • They rubbed a piece of a magnetite with an amber cloth and produced magnetic fields.


Earth is a giant magnet
Earth is a Giant Magnet

  • Deep inside earth there is a core of metal.

  • Liquid iron inside makes earth magnetic fields.

  • Earth has North and South Magnetic Poles as magnets does