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Lesson · Grade 3 · Science

Food Chains and Food Webs

  • Grade 3
  • Science
  • 1 min 6 s
  • British Columbia
  • BC3-SC-06

Sunlight feeds grass, a rabbit eats the grass and a lynx eats the rabbit, with a spark of energy running along the arrows to show how energy passes from food to eater in a food chain. A wolf that may also eat the rabbit and a deer that eats grass join three food chains into a food web, and the video ends on the recap that a food web is food chains joined together.

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In one sentence

The question this lesson answers

Where do living things get the energy they need to live?

Grass uses sunlight to make its own food.

Transcript

What the lesson says

Where do living things get the energy they need to live?

Grass uses sunlight to make its own food.

A rabbit eats the grass to get energy.

The arrow points from the food to the eater.

Then a lynx eats the rabbit.

Energy passes from the Sun, to the grass, to the rabbit, to the lynx.

This is called a food chain.

But a rabbit may be eaten by a lynx or by a wolf.

Deer eat grass too, and wolves eat deer.

When food chains join together, they make a food web.

This food web has three food chains in it.

Energy from the Sun passes along every arrow in the web.

So a food web is food chains joined together.

Curriculum

Where this fits

British Columbia, Grade 3

Science, Biology: energy is needed for lifeBC3-SC-06

Previous: Producers, Consumers and Decomposers

The outcomes and strands follow the British Columbia curriculum.

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