Science · For ages 7–11
How Magnets Work for kids, explained simply
Magnets work because of a force called magnetism. Every magnet has two poles — a north and a south. Opposite poles attract each other and like poles push away. This force comes from the movement of electrons inside the metal, which line up together and create a magnetic field around the magnet.
The big ideas
Every magnet has two poles
A magnet always has a north pole and a south pole. Opposite poles (north and south) pull towards each other. Same poles (north and north, or south and south) push away from each other.
Magnetic fields are invisible — but real
A magnet affects the space around it, even without touching anything. We call this a magnetic field. Sprinkle iron filings near a magnet and you can actually see the field’s shape — curved lines curling from pole to pole.
Electrons are behind it all
Magnetism comes from electrons moving inside atoms. In magnetic materials like iron, huge groups of atoms line up so their electrons all push in the same direction, creating a strong combined force.
A quick quiz
1. What happens when you put two north poles of magnets near each other?
Choices: They attract · They push apart · Nothing happens
Answer: They push apart. Like poles repel — two norths push away from each other. Only opposite poles (north and south) attract. This is one of the most reliable rules in all of physics.
2. What is a magnetic field?
Choices: A field where crops grow with magnets · The invisible region of force around a magnet · A type of electricity
Answer: The invisible region of force around a magnet. A magnetic field is the zone of influence around a magnet — it can push or pull magnetic objects even without touching them.
3. What causes magnetism in materials like iron?
Choices: The weight of the metal · Electrons in atoms all lining up in the same direction · The colour of the metal
Answer: Electrons in atoms all lining up in the same direction. In magnetic materials, huge groups of atoms line up so their electrons all move in the same direction, producing a combined magnetic force strong enough to feel.
For parents: helping your child think about how magnets work
Magnets are one of the best hands-on science topics because the force is real and feelable — push two same poles together and you can literally feel something pushing back through empty space. Start there. Let your child hold two magnets and explore before you explain anything. Asking “what do you notice?” beats telling. The hardest but most important idea is that a force can act at a distance, across empty space, without anything connecting the two objects. That’s genuinely strange, and it’s fine to say so — physicists find it fascinating too. Connect it to the big picture: Earth itself is a giant magnet, which is why a compass needle always points north. If you have a compass, show them: turn it around in different directions and watch the needle hold steady — it’s responding to the Earth’s field. The iron-filings-on-paper demonstration (in a book, or watched on video) makes the invisible field suddenly visible, which is a powerful moment. The thinking skill here is “invisible things can have real effects, and we can detect them indirectly.” That same reasoning applies to gravity, germs, and atoms. Ask your child to explain why two magnets sometimes attract and sometimes push apart, in their own words.
Frequently asked questions
What makes something a magnet?
A material is magnetic when large groups of its atoms align so that their electrons all push in the same direction, creating a combined force strong enough to attract iron and other magnetic metals.
Why do opposite poles attract?
Opposite poles — north and south — attract because their magnetic fields point towards each other and combine. Same poles point in the same direction and push apart instead.
Is the Earth a magnet?
Yes — the Earth has a magnetic field generated by molten iron moving in its core. That field is what makes a compass needle point north and also protects us from charged particles from the Sun.
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