Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Describe Feeding Relationships

In this worksheet, students will be able to explore a variety of feeding relationships including food chains, webs and pyramids as well as looking at adaptations that predators and prey have to catch prey or to avoid capture.

'Describe Feeding Relationships' worksheet

Key stage:  KS 3

Year:  Year 7 Science worksheets

Curriculum topic:   Biology: Interactions and Interdependencies

Curriculum subtopic:   Relationships in an Ecosystem

Popular topics:   Biology worksheets, Biology old worksheets

Difficulty level:  

Worksheet Overview

Feeding relationships sounds like a weird title - is that the relationship between a shipwrecked sailor and a cannibal? Or perhaps it's someone who's a vegetarian in a relationship with a meat-eater?


In fact, it's neither of these! 


Living things (organisms) that live in a certain area or habitat, all rely on one another. We say they're interdependent. Often, they depend on one another for food. A cool way scientists show this is through something called a food chain. Here's an example below:


Image showing food chain of fox eating a rabbit that eats grass


In this food chain, we can see the grass is being eaten by the rabbit which in turn gets eaten by the fox. The grass is a plant so we call it a producer, which means it makes (produces) its own food (through a clever process called photosynthesis). 


The rabbit is a primary consumer - it's the first animal to eat in the food chain which is why we use the word primary.


This is followed by the fox which is the secondary consumer.  A bit like primary school is the first school we go to, followed by a secondary school.


Image of a fox Image of a rabbit


The fox is also known as a predator. A predator is an organism that will hunt for its food. The fox is adapted or suited to hunt by being fast and having sharp teeth to capture its prey, the rabbit in this case. The rabbit also has adaptations to avoid the fox, for example having a good sense of hearing. No wonder it has such huge ears!


The arrows in a food chain are really important, they show us what gets eaten by what, but also shows the direction of the energy transferred. So the energy in the grass is transferred to the rabbit, which then gets transferred to the fox. 


We can link lots of food chains together to form something called a food web. Food webs show all the different feeding relationships in a habitat. Most organisms will feed on different sources of food. Here's another example: 


Image of food web


In this example, we can see that the mouse feeds on the grass but gets eaten by the snake, which gets eaten by the hawk. We can write this food chain out: 


Grass → Mouse  → Snake  → Hawk


Another example of a food chain could be:


Grass → Mouse  → Owl → Hawk


We can also show feeding relationships between organisms by using a pyramid of numbers. A pyramid of numbers shows the number of organisms at each stage of a food chain.


Look at this pyramid of numbers from a field:


Food pyramid


This pyramid of numbers shows that the rabbit eats one million blades of grass and one fox eats ten rabbits!


This activity will explore what feeds on what, why, and how they are adapted to do so. It will also look at the differences between documenting food relationships, using food chains, webs and pyramids. It will also introduce the idea of energy transfer through feeding.


So, let's get our teeth into it!

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started

Try an activity or get started for free

  • National Tutoring Awards 2023 Shortlisted / Parents
    National Tutoring Awards 2023 Shortlisted
  • Private-Tutoring-WINNER-EducationInvestor-Awards / Parents
    Winner - Private Tutoring
  • Bett Awards Finalist / Parents
  • Winner - Best for Home Learning / Parents
    Winner - Best for Home Learning / Parents