Ecosystems and Their Parts

Ecosystems and Their Parts

What students learn

Students learn that an ecosystem is more than a place with plants and animals. It includes all the living and nonliving parts that affect one another. Start with Ecosystems: What Makes a Living System so students can picture the whole system, then use Ecosystems: Living and Nonliving Parts Work Together to show how those parts depend on each other.

Why it matters

If students can name the parts of an ecosystem, they can explain why a desert, pond, forest, or backyard is different from another place. That makes later lessons on food chains and food webs easier to understand. Bring in Biotic and Abiotic Factors: Name the Living and Nonliving Parts when you want the science words to land clearly.

Learn the idea

Biotic factors are living things such as plants, animals, and fungi. Abiotic factors are the nonliving parts, such as water, sunlight, temperature, and soil. Those pieces shape what can survive in a habitat. Watch Biotic and Abiotic Factors: How the Environment Shapes Survival and ask students to name one biotic factor and one abiotic factor from their own neighborhood.

Try it

Have the student pick one local place, like a park, garden, or schoolyard. Ask them to list the living and nonliving parts and explain which parts would change if the weather or water supply changed. Revisit Ecosystems: What Makes a Living System if they need one more example.

Parent guide

Use simple compare-and-sort questions: Is it living or nonliving? Does it help the plant, the animal, or both? Keep the examples concrete and familiar. If the child gets stuck, point to a real environment and name what they can see, feel, and hear.