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topic: Food chains and food webs activity: Food chains and food webs All organisms obtain their energy and nutrient requirements by eating plants or animals. Students challenge their knowledge of the key concepts and terms in ecology to correctly label organisms in a food chain and web. Suggested time: 15 minutes Summary of key learning point 1. identify the types of organisms in a food chain and food web 1. Identify the types of organisms in a food chain and food web 15 mins Students complete the activity to deepen their understanding of the sequence and complexity of a food chain and a food web. Points to highlight - The interaction between producers, primary consumers and secondary consumers can be illustrated in a food chain. It is called a ‘chain’ because each living organism in the chain is like a ‘link’, and each one depends on the organism that comes before it. - In general, food chains rarely have more than six links (called trophic levels). In every ecological community several food chains are interrelated because the organisms that make up those food chains have various food sources. This interaction of food chains is known as a food web. - Arrows in food chains and food webs mean 'eaten by'. Drag and drop answers Plant - Producer Rabbit - Herbivore, Primary Consumer, Prey Snake - Carnivore, Secondary Consumer, Predator, Prey Eagle - Carnivore, Secondary Consumer, Tertiary Consumer, Predator When this correct combination is entered, the food chain expands to a food web. Drag and drop answers Shrimp - Herbivore, Primary Consumer, Prey © IntoScience 2013. This sheet may be reproduced for classroom use Page 1/2 topic: Food chains and food webs activity: Food chains and food webs Fish - Omnivore, Primary Consumer, Predator, Prey Mouse - Herbivore, Primary Consumer, Prey A larger food web is shown after this as a demonstration of how complex the interactions can get in an ecosystem. © IntoScience 2013. This sheet may be reproduced for classroom use Powered by TCPDF (www.tcpdf.org) Page 2/2
