Food Webs and Interdependence — Interactive Lesson (Ages 11–14)

Every living thing depends on others. Show pupils what happens when one link breaks. This 18-slide interactive lesson on food webs takes pupils from first ideas to exam-style explanations, with 9 self-marking activities and nothing to prepare beforehand.

Teaching Food Webs and Interdependence in KS3 Science

Pupils build food chains with producers, consumers and predators, read a savanna food web and predict how populations change when one species increases or falls. They explain how pesticides and heavy metals build up to the highest levels in top predators, and describe other ways organisms depend on each other, such as pollination and seed dispersal.

What Pupils Will Learn

• Build food chains using producers and consumers.
• Read and interpret a food web.
• Predict what happens when a population changes.
• Explain how toxic substances build up along a food chain.
• Describe how organisms depend on each other, e.g. for pollination.

What’s Included

• 18-slide interactive lesson on food webs
• 9 self-marking activities: multiple-choice questions, true-or-false checks, sorting tasks, drag-and-drop categorising and fill-in-the-gap questions
• Step-by-step teaching cards that reveal one point at a time
• A written explanation task with a model answer for self-assessment

Why Teachers Love It

• No prep — open it on an interactive whiteboard, laptop or tablet
• Instant feedback explains every answer, right or wrong
• Everyday examples make biology feel real
• Works for whole-class teaching, independent study or revision

Curriculum Alignment

Supports the UK Key Stage 3 Science curriculum and Nigerian Junior Secondary Basic Science (JSS2), building the foundations pupils need for GCSE, WAEC and NECO.

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FAQ

What year groups is this for? Year 8 (ages 11–14), and JSS2 in Nigeria.

Is it self-marking? Yes — all 9 activities give instant feedback.

Do pupils need to log in? No. The lesson runs in any modern web browser.

Can I use it for revision? Yes. Pupils can replay it as often as they like, and the results screen shows which questions to review before a test.