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🐟 Ocean Food Chains

Follow the sun's energy from tiny sea plants all the way up to the hungry shark, and see how every ocean animal is a link in the chain.

3
lessons
~15 min
to learn
🔬 Science
subject
Ages 6–12
level
Start the course →

What you’ll learn

  1. What Is a Food Chain?Understand that a food chain shows who eats what, and that it always begins with the Sun and tiny sea plants.A food chain links living things to show who eats what. Every ocean food chain starts with the Sun, whose light is caught by tiny floating sea plants. Those plants make their own food and feed the animals that come next.
  2. Links in the Ocean ChainFollow the ocean food chain from tiny plant-eaters to small fish to bigger fish, and put the links in order.After the tiny sea plants come the tiny plant-eaters that drift and nibble them. Small fish eat those tiny animals, and bigger fish eat the small fish. Each link in the chain is food for the next one.
  3. Everything Is ConnectedLearn that energy flows up the chain to a top predator, and that every link matters to the ocean.At the top of the chain is a top predator like the shark, which few animals eat. Arrows in a food chain point to the animal doing the eating, showing how the Sun's energy travels all the way up. Every link matters, so the ocean needs animals big and small.

Questions this course answers

What does a food chain show us?

A food chain links living things together to show who eats what and how energy passes from one to the next.

Where does the energy in every ocean food chain come from first?

The Sun's light is the very first energy source, and the tiny sea plants catch it to make food.

What do the tiny sea plants use to make their own food?

The tiny floating sea plants catch sunlight and use it to make their own food, which feeds the whole ocean.

What do small fish like to eat in our chain?

Small fish swim in groups and gobble up the tiny drifting animals that eat the sea plants.

Which animal is at the top of our ocean food chain?

The shark is a strong hunter that few animals eat, so it sits at the top of the chain as a top predator.

In a food chain, what do the arrows point to?

Each arrow points to the animal doing the eating, showing which way the energy travels along the chain.

Grounded in trusted sources

  • National Geographic Kids
  • NOAA
  • Smithsonian Ocean
  • Britannica Kids

Every Wunder lesson is built from real, reputable sources — never invented.

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