Ocean “plants” (algae) from tiny films to towering kelp forests.

Why it matters: Seaweeds make food and hideouts for creatures—and some end up as snacks for us.

Fun Fact: Giant kelp can grow super fast—like a watery bamboo forest.

Say it like this: SEE-weed

Your turn: Check your kitchen—spot seaweed on a snack label (nori, agar, carrageenan).

We have something for you: read why marine life is important.