Ecosystem matter flow comes to life as Grade 5 students trace how carbon and nutrients move through terrestrial ecosystems. This NGSS-focused science learning stations activity explores the connections between producers, consumers, decomposers, and soil, helping students examine what happens to matter as organisms grow, feed, produce waste, and decompose.

Rather than treating an ecosystem as a collection of separate organisms, students investigate how its components are connected through the movement of matter. They also explore how producers capture energy through photosynthesis and use that energy to build biomass, providing a foundation for reasoning about relationships within an ecosystem.

Follow Matter Through an Ecosystem

The station cards provide the basis for investigating the processes that move matter through terrestrial ecosystems. Students work with ideas that connect plant growth, feeding relationships, waste, decomposition, and soil, considering how materials move between living organisms and the nonliving environment.

• Photosynthesis and biomass: Explain how producers capture energy and build biomass.
• Feeding relationships: Trace how matter moves from producers to consumers.
• Waste and decomposition: Examine how materials return to the environment through organism waste and decomposition.
• Carbon and nutrients: Follow the movement of these materials among organisms and soil.

These connections give students a clearer way to explain ecosystem interactions and distinguish the movement of matter from the transfer of energy.

What Is Included?

• Station cards: Case-based station materials for exploring ecosystem matter flow.
• Station recording sheet: A place for students to record information as they investigate the stations.
• Station wrap-up: A concluding activity to bring together ideas from the station investigation.
• Answer Key PDF with Teacher Guide: Includes learning objectives, teaching tips, discussion questions, and common mistakes to support instruction and review.

How to Use the Learning Stations

Place the station cards around the classroom and divide students into small groups. Groups begin at different stations, read the case-study information, and record their thinking on their own recording sheets. After the allotted time, students rotate to the next station until they have visited them all. Finish with a class discussion in which students compare their observations and explain how matter moves through the ecosystem.

This format can be used during a Grade 5 ecosystems unit, as a structured science investigation, or to review the relationships among producers, consumers, decomposers, and soil. The recording sheet keeps student work organized, while the wrap-up provides an opportunity to connect ideas gathered across the stations.

NGSS Connection

This resource is identified with NGSS standard 5-LS2-1. Its focus on ecosystem relationships and the movement of matter supports classroom exploration of how organisms interact with one another and with their environment.

Use this Grade 5 ecosystem activity to give students a structured way to trace matter, explain decomposition, and connect photosynthesis with the flow of materials through a terrestrial ecosystem.