The slide show was designed and produced for

The slide show was designed and produced for the NMA by STEP, the Science Training & Education Partnership www. step-up-to-science. com Science Training & Education Partnership The material in this slide show is provided free for educational use only. All other forms of storage or reproduction are subject to copyright- please contact the National Marine Aquarium www. national-aquarium. co. uk

Food chains and food webs ‘who eats whom’

Plants and animals living in a habitat can be linked together

Food chains show food passes from one living thing to another

All food chains start with a Plants can make their own food, using sunlight

FOX RABBIT An animal that eats other animals GRASS An animal that eats plants A plant - makes its own food The arrows show the food chain

Food chains work in the same way in the sea. . . … but the plants and animals look a bit different!

FISH COPEPOD Out in the ocean, there is no grass or trees ALGAE An animal that eats other animals The plants are tiny ALGAE A tiny that - you need a animal microscope to eats plants see them Microscopic plants make their own food This is a food chain in the ocean

This food chain wouldn’t stop here. . .

In most habitats, there are several food chains These are linked together to form a Food Web

Food webs can be quite complicated Here is one from the ocean around Antarctica

Seals eat Squid eat fish and squid krill and fish Fish eat krill and copepods A simple food chain whale eats krill eats algae Copepods also eat algae, and are eaten by krill This food web contains 7 types of living things, and 9 food chains

The shortest food chain in the Antarctic food web has two links

The longest food chain in the Antarctic food web has five links

You have seen that A food chain links plants and animals in a habitat All food chains start with a plant

You have seen that Food chains on land in the ocean are similar Food chains can be linked to form food webs

www. justaddh 2 o. tv www. national-aquarium. co. uk NOTES for USERS The material in this slide show is designed to support the teaching of science at Key Stage 1 A full description of the slide show, and linked activities for students, can be found on the National Marine Aquarium (NMA) web-site: Teachers are free to amend the slide show in whatever way they feel fit, or to use slides in other contexts. However, please note that neither the NMA nor the designers will accept responsibility for modifications, and original material remains copyright of the NMA Individual images used in the slides are copyright of NMA or STEP, except where acknowledged separately The slides have been set up to display as A 4 landscape format. If they are incorporated into other slide sequences with different display settings, change in aspect ratio and text location will occur The slide sequence contains the minimum of effects and transitions. However, there are some automated animations, and teachers will wish to make sure that they are familiar with the sequence before use in class Use the Power. Point notes viewer to obtain additional information for some slides