A habitat is the place where an organism lives. It must provide food, shelter and a place to reproduce.

A group of organisms of the same type in the same place is called a population.

A community is made up of all the organisms that live in the same place.

A food chain diagram shows how food is transferred from one population of organisms to another.

A food web diagram shows how all food chains interact with each other.

Food webs

Science

Food chains

Predator-prey relationships

Adaptations of predators and prey

Ecosystems and habitats

Pollination and human food security

Using chemicals in farming

Bioaccumulation

The importance of biodiversity

Pupils will move on to construct and interpret pyramids of number and biomass from food chains data. Pupils will learn about how plants and animals are adapted to survive and the impact of changes to the environment on biodiversity. The importance of biodiversity and the importance of gene banks. How to sample plant and animal populations to aid our understanding and monitoring of populations. 

In Y4 pupils learnt about their local environment and to recognise that environments can change. Pupils also explored examples of human impact (both positive and negative) on environments. Pupils looked at a variety of food chains to identify producers, predators and prey.

This unit explores the interdependence of organisms in ecosystems, including food webs and insect-pollinated crops. It examines how organisms interact with their environment and the impact of toxic materials. It also highlights the importance of biodiversity and preserving genetic material.

Ecosystems

A {{}} is made up of all the living organisms that live in the same place.

Which of the following is an example of a population?

The fish in the picture is streamlined in shape and has a mouth that can act as a sucker. What habitat do you think this fish lives in?

Below are three food chains. Which food web correctly shows all three food chains?

algae, algae, limpet, algae, limpet, barnacle, dog whelk, seagull , dog whelk, seagull , starfish, Layer 1

algae, algae, limpet, algae, limpet, barnacle, dog whelk, seagull , dog whelk, seagull , starfish,

How many food chains make up the food web diagram?

The population of hawks would increase because there are fewer rabbits to eat.

The population of grass would decrease because more grasshoppers would eat it.

The population of lizards would decrease because the hawks eat more of them.

The population of snakes would increase because there are no rabbits.

What might happen if all the rabbits died?

The arrows show the direction that food moves along the food chain.

What do the arrows in a food chain diagram represent?

A {{}} is the number of organisms, of the same type, that live in a given area.

An organism that makes its own food from sunlight and chemicals.

An organism that eats secondary consumers.

How many prey are there in the food chain diagram below?

Match the organism in the food chain to the correct description.

Match the statements with the organism that appears in this food chain.

Food webs

Lesson outcome