What is oxidation?

Oxidation is when something loses electrons, kind of like sharing toys but ending up with fewer.

Imagine you and your friend are playing with a pile of marbles. You both have the same number at first. But then, you give some marbles to your friend, not because you're being mean, but just because that's how the game works. After that, you have fewer marbles than before, and your friend has more.

That’s like what happens in oxidation: a particle (like an atom or molecule) gives away some of its electrons, which are like tiny, important helpers that help it do things. When it loses those helpers, it becomes more positive, kind of like being tired after giving up marbles.

You might have seen oxidation when your apple turns brown after you cut it. The apple is losing electrons (like giving away its marbles), and that change makes it look different, just like how you looked after you gave up some marbles!