Ecosystems | Centers
Students rotate through short centers to explore what ecosystems are, how living and nonliving parts interact, and how changes in one part can affect the whole system.
| Term | Definition |
|---|---|
| ecosystem | A community of living things and nonliving parts that interact in an area. |
| organism | An individual living thing. |
| population | A group of the same kind of organism living in the same area. |
| community | All the different populations living together in an area. |
| habitat | The place where an organism lives and gets what it needs. |
| nonliving factor | A part of the environment that is not alive, such as water, sunlight, or soil. |
Show one ecosystem image and ask: What living and nonliving things do you notice? Briefly review the meaning of ecosystem.
Observe the image, share ideas, and name visible living and nonliving parts.
Direct students to sort cards into living and nonliving factors, then identify one ecosystem from the cards.
Work with a partner to sort cards and explain their choices.
Provide ecosystem photos. Ask students to match organisms to the correct habitat and record one need each organism has.
Match organisms and habitats, then write how the habitat helps the organism survive.
Present a simple scenario, such as less rain in a pond ecosystem. Ask students to predict two effects.
Discuss the scenario, record possible changes, and use evidence from the cards or image.
Ask for one example of an ecosystem interaction from each center and clarify any misconceptions.
Share one idea from the centers and listen to classmates.
Review that ecosystems include living and nonliving parts that depend on one another. Remind students that changes in one part of an ecosystem can affect many others.
Students complete an exit ticket identifying one ecosystem, one living part, one nonliving part, and one interaction or effect. Use responses to check understanding of key concepts.
Choose an ecosystem near home, in a park, or in a picture. Draw or list at least three living and two nonliving parts, then write two sentences explaining how they interact.