Energy Flow in Food Webs

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Objective

I can describe how energy flows and matter cycles through a food web.

Part 1 of 4

Warm-up video

Khan Academy · 4:11Vetted channel

We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    A food web shows how matter and energy flow in an ecosystem.

  2. 2

    Producers, like plants, use energy from the Sun to create their own food, while consumers obtain energy by eating other organisms.

  3. 3

    Decomposers break down dead organisms and waste, recycling matter back into the ecosystem.

Part 3 of 4

Practice

12 questions

1

What is the primary source of energy for most ecosystems, as discussed in the video?

2

Explain the role of producers in a food web.

Part 4 of 4

Exit ticket

Quick comprehension check

Describe how energy and matter move through the food web shown in the video. Be sure to include the roles of producers, consumers, and decomposers.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

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    Printable worksheet

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