What Is a Food Chain?
Science · Life Science and Biology · Grades 2–5
Meaning at a glance
A food chain shows how food and energy pass from one living thing to the next. The arrows point from the food to the animal that eats it.
Also searched as: food chains, who eats what, producer consumer.
Understand it simply
Living things need energy. Green plants make their own food using sunlight, so they are called producers. Animals cannot make food, so they eat plants or other animals. They are called consumers.
A food chain follows the energy: plant, then the animal that eats the plant, then the animal that eats that animal. Every food chain starts with a producer.
See it work
Here is a food chain from the grasslands. Grass makes food from sunlight. A grasscutter (a large rodent) eats the grass. A python catches and eats the grasscutter.
Avoid this confusion
Which way do the arrows point? An arrow in a food chain means “energy goes to”. So the arrow goes from the grass to the grasscutter that eats it, not the other way round.
Also, real animals usually eat more than one thing, so many food chains link together into a food web.
Try it yourself
Work these out first, then check your answers below.
In the food chain grass → rabbit → fox, which living thing is the producer?
In the chain above, what does the arrow from rabbit to fox mean?
What might happen to the foxes if all the rabbits disappeared and the foxes ate nothing else?
Check your understanding
Show the answer to question 1
Answer: Grass
Grass makes its own food from sunlight, so it is the producer. Every food chain starts with a producer.
Show the answer to question 2
Answer: The fox eats the rabbit, so energy passes from the rabbit to the fox.
Arrows point to the living thing that does the eating.
Show the answer to question 3
Answer: The number of foxes would fall.
The foxes would lose their food. Without enough food, some would starve or move away.
Understand more with Courseversity
You now know what food chain means. Keep going with a full lesson, then explore the ideas that connect to it.
Learn
Learn this in a full lesson.
- Food and shelter (Grade 2)
- Simple food chains (Grade 3)
- Producers (Grade 3)
- Food chains (Grade 4)
- Food chains (Grade 5)
Practise
Practise with Learning Lab questions for the lesson Food and shelter (Grade 2), with an explanation after each answer.
Explore
Ideas that connect to this word.
- Photosynthesis: how producers make their food.
- Habitat: where the living things in a food chain live.
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Sources and review
- Encyclopaedia Britannica: food chain – A general reference article on food chains and the roles of producers and consumers.
Written by: Courseversity editorial team (AI-assisted draft).
Review status: checked against the sources above. Educator review is pending, so please tell us if anything looks wrong.
Last updated: 27 October 2026.