Magnetic or Not?

Magnets pull some things and ignore others. This 90-second narrated lesson teaches kids which everyday materials a magnet can attract — iron, nickel and cobalt — and which it leaves alone, like wood, plastic and glass. Includes an interactive sorting activity and a quick quiz.

Class 6 ScienceClass 6 / Grade 6Ages 8–11
Lesson
🧲 Magnetic or Not?
Which ones jump to the magnet?NS🪛📄🪵🔑🥄

Have you ever stuck something to a fridge magnet? Some things stick — and some don't. Today we'll find out which ones get pulled, and which ones the magnet ignores.

What is a magnet?

A magnet is an object that attracts certain metals — most importantly iron. The pull is invisible but real. You can feel it the moment a magnet comes close to a paper clip or a steel nail.

Magnets come in two kinds. Natural magnets — like lodestone, a black rock found in nature — were discovered thousands of years ago and were the first magnets anyone knew about. Artificial magnets are made by people. The bar magnets, horseshoe magnets, ring magnets, fridge magnets and disc magnets you see today are all human-made.

Which materials are magnetic?

Only a few materials are pulled by magnets. The big three are:

  • Iron — the most common magnetic metal. Iron nails, steel keys (steel contains iron), and iron filings all stick to magnets.
  • Nickel — used in some coins and magnets.
  • Cobalt — found in some special steels.

Together these three are called ferromagnetic materials. Most other things — wood, plastic, paper, glass, rubber, water, gold, copper, aluminium — do not respond to magnets at all.

Why aren't all metals magnetic?

It surprises most kids: most metals are not magnetic. Aluminium foil, copper wire, gold rings, silver coins — none of these stick to a magnet. The reason lies deep inside the atoms. Only a few elements have just the right structure for their atoms to line up and create a magnetic pull. Iron, nickel and cobalt are the lucky few you meet often in everyday life.

Try it as a magnet hunt

Take a fridge magnet around your home and try it on different things — pencil, spoon, cup, table, door handle, wall, plant pot, scissors, eraser. Make a quick list of which ones it pulls and which it ignores. You'll quickly notice that shiny silver-coloured isn't a guarantee of being magnetic — many metallic-looking things are aluminium or stainless steel, and only some types of stainless steel have enough iron to be pulled.

Frequently asked questions

Why do magnets pull iron but not aluminium?

Iron, nickel, and cobalt have a special atomic structure that lets their atoms line up like tiny magnets. Aluminium, copper and most other metals don't, so a magnet doesn't affect them.

Are all kinds of steel magnetic?

Most steel is magnetic because it's made mostly of iron. But some special stainless steels mix in other metals that reduce the magnetic pull, so they barely stick or don't stick at all.

What is lodestone?

Lodestone is a naturally magnetic rock — actually a form of the mineral magnetite. It was the first magnet ever known, and the word 'magnet' itself comes from the ancient region of Magnesia where lots of lodestone was found.

Can a magnet attract another magnet?

Yes! Two magnets attract or repel each other depending on which poles face each other. Opposite poles attract; like poles repel. We cover this in the lesson 'Two Poles, Two Rules'.

Will a magnet stick to my body?

No. Even though our blood contains tiny amounts of iron, it's far too little — and not in the right form — for a magnet to pull. Your body is safely non-magnetic.

Can I make my own magnet?

Yes — by repeatedly stroking an iron object (like a sewing needle) with a strong magnet in one direction, you can magnetise it. We cover this in the lesson 'Make Your Own Compass'.

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