What Causes the ‘Rust’ on Old Metals?

Rust happens when iron or steel meets water and air, like a magical team working together to change the metal into something else.

Imagine your favorite toy is made of iron. If it gets wet from playing in the rain, and then sits outside for a while, it might start looking rusty, kind of like how your skin gets red when you're mad or tired. That’s because oxygen from the air and water team up to make a new substance called iron oxide, which is what we call rust.

• Iron is like a shy kid who wants to change.
• Oxygen is like a friendly helper who joins in.
• Water is like the magic potion that makes it all work.

When they all hang out together, they create rust, which can make metal look old and worn. It’s like the metal got tired from playing too much with oxygen and water!

Sometimes, rust even peels off, just like how you might peel off a bandage after a long time. But don’t worry! Rust doesn’t hurt the metal, it just makes it look different. Rust happens when iron or steel meets water and air, like a magical team working together to change the metal into something else.

Imagine your favorite toy is made of iron. If it gets wet from playing in the rain, and then sits outside for a while, it might start looking rusty, kind of like how your skin gets red when you're mad or tired. That’s because oxygen from the air and water team up to make a new substance called iron oxide, which is what we call rust.