Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Understand the Impact of Environmental Changes

In this worksheet, students will use their knowledge of the impact of environmental change.

'Understand the Impact of Environmental Changes' 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 old worksheets

Difficulty level:  

Worksheet Overview

The environment is the surroundings in which all plants and animals live. All living things in an environment depend on each other.


The diagram below is called a food web. It shows us how different animals that share the same environment, feed off each other and compete for food.


In the food web below, the owl and snake compete for the mice.


Food web


Food webs also allow us to predict what might happen to an animal if the environment changed.


If we change our environment, by building something or digging something up, it can be quite dangerous for plants and especially animals.


For example, if we were to destroy the shrubs in the food web, the rabbits in the environment would have nothing to eat and eventually the rabbits would die.


The hawk also would have less food available and would only be able to eat the snake. The number of snakes in the environment (the population) will go down because that's the only animal the hawk can eat (as there are no rabbits). As there are now fewer snakes in the environment, the mouse numbers go up!


So we can see that changing one thing in our environment can have a knock-on effect on others!

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

Popular Science topics

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