What is Filtering?

Filtering is when you sort out what you want from a big mix of things.

Imagine you have a basket full of different fruits, apples, oranges, bananas, and grapes. You only want the apples. So you pick out just the apples and leave the rest behind. That’s like filtering: you’re choosing one kind of thing from a group.

Think about a sieve, which is that kitchen tool with holes in it. When you pour water and flour into it, the water goes through the holes, but the flour stays behind. That’s filtering too, the sieve lets some things pass through while keeping others back.

When you use a strainer to separate pasta from water, or when you sort your toys before cleaning up, you’re doing filtering every day! You're choosing what fits and what doesn’t.

It’s like having a special rule: only this goes through, and everything else stays behind.