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Food Webs There is more than one food chain in nature You have just learnt a lot about food chains, but there is not only one food chain in nature. This is because each organism's feeding habit and territory are different, which makes the feeding relationships among organisms more complicated.
Students will learn about food chains and food webs by exploring a beaver pond food web and the life within it. Activity. Begin by introducing the concept of a food web. Additionally, explain what a food chain is and how energy is transferred through it.
Select four cards to create a food chain, starting with a producer. Label the trophic level of each organism in your food chain as follows: producer, primary consumer, secondary consumer, tertiary consumer. Record your food chain in the space below using species names and arrows.
Food Chains and Food Webs Grade Level: 4 Curriculum Links: Science and Technology Time Needed: 40 minutes – 1 hour Learning Goal To understand food chains/webs and how living things are connected in an ecosystem.
The food chains and food webs help understand the feeding relationships and the interactions between organisms in any ecosystem. Nutrient cycling and energy flow in an ecosystem takes place through food chains and food webs. Food chains keep a check on the population size of different organisms.
Worksheets are included to help students identify the different components of food chains and webs, including producers, primary and secondary consumers, herbivores and carnivores. Multiple choice questions assess understanding of energy flow and trophic levels.
The food chain, food web, and energy pyramid are all models that show feeding relationships and allow us to make predictions. Compare and contrast the strengths and weaknesses of each model by filling in the table below.
