Carbon Cycle Game

---

Overview

Subject: Science
Year Group: Year 11
Duration: 45 minutes
Class Size: 20 students
Curriculum Area: AQA GCSE Combined Science – Trilogy
National Curriculum Reference:

• Biology Paper 2 – Ecology
• 3.4.1.6 – Carbon cycle: "Students should be able to describe the processes involved in the carbon cycle, including combustion, respiration, photosynthesis and decomposition."

---

Learning Objectives

By the end of the lesson, students will be able to:

• Recall and describe the major processes of the carbon cycle.
• Model the movement of carbon through various environmental stores and processes.
• Ask insightful questions about carbon flow in different contexts.
• Write a sequence of events in the carbon cycle and describe the role of biological and physical processes.
• Identify misconceptions through peer interaction and self-reflection.

---

Resources

• 20 printed Carbon Cycle Role Cards (different roles: atmosphere, fossil fuel, ocean, animal, plant, decomposer, etc.)
• Pack of "Carbon Tokens" (reusable discs or paper tokens)
• A3 Carbon Journey Maps for drawing/writing
• Sticky notes in 2 colours (e.g. pink for questions, green for ideas)
• Visual carbon cycle diagram (interactive board or printed class poster)
• Timer or stopwatch
• Mini-whiteboards and markers (optional)

---

Preparation Before Class

1. Arrange desks/tables in a large circle to simulate the cyclical nature of carbon movement.
2. Place Carbon Tokens at "stations" around the room.
3. Set up the interactive visual of the carbon cycle at the front.
4. Distribute role cards randomly at the start of class. Each student represents a "carbon location" or process.

---

Starter (5 minutes)

Activity: “Mystery Carbon”

• Pose a puzzling starter question:
  "What do you have in common with a volcano, a tree, and your mobile phone?"
• Students brainstorm 1 minute individually, then share quick thoughts with a partner.
• Teacher invites 2-3 ideas and leads into:
  "It’s… Carbon! Today we're going to play with carbon - literally."

---

Main Activity – The Carbon Journey Game (30 minutes)

Part 1: Setting the Scene (5 minutes)

• Explain the Game Brief:
  Students will ‘become’ parts of the carbon cycle. Through dice rolls and interactions, carbon tokens will move from one store to another, modelling the real-world processes.
• Distribute Carbon Journey Maps: A3 sheets where they’ll track where their carbon goes and what happens.

Part 2: Game Time (20 minutes)

• Students begin at their starting “roles” (e.g. Atmosphere, Plant, Fossil Fuel).

• Each student holds a carbon token.

• Teacher calls out events every 90 seconds (randomly chosen from a pre-written stack). Example events:

  • "Photosynthesis occurs in the Amazon rainforest"
  • "Fossil fuels are burned in a power station"
  • "A cow respires after eating grass"
  • "Dead leaves decompose in moist soil"

• Students follow process rules (on their role cards) and pass the token accordingly. For example:

  • If a student is a plant and the event is photosynthesis, they ‘take in’ carbon from the atmosphere.
  • If combustion is called, the fossil fuel 'releases' carbon to the atmosphere.

• After each round, students update their Carbon Journey Maps:

  • Note where the carbon moved to
  • Write quick cause (e.g. “Photosynthesis pulled carbon into plant”)
  • Write a "Wonder" question using a sticky note (e.g. “What happens if plants die before being eaten?”) and post to a “Wonder Wall” in the room.

• Extra twist every 3 rounds: “Disruption Tokens” are introduced. E.g. Deforestation, Global Warming. This changes normal rules e.g. plants may not photosynthesise.

• Encourage scientific vocabulary during transitions: respiration, combustion, decay, etc.

Part 3: Reflection and Discussion (5 minutes)

Group Debrief. Students form triads based on recent carbon movements and share:

1. What was the most surprising movement of carbon today?
2. One process they found hard to model.
3. Read & discuss one “Wonder” question from your group.

Teacher reads aloud selected questions — praises insightful thinking and connects back to key ecological ideas.

---

Plenary (10 minutes)

Write to Think

• Individually, students complete a structured paragraph response using the sentence starter:

  "The carbon cycle is a continuous process involving biological and physical changes such as..."

• Challenge: Use ALL of the following terms: photosynthesis, respiration, combustion, decomposition, atmosphere, and fossil fuels.

• Collect 5-6 responses to read anonymously next lesson as part of retrieval or interleaving strategy.

---

Differentiation

• Support:

  • Provide scaffolded maps for SEN/EAL students with boxes and sentence prompts.
  • Pair weaker students with stronger peers during movement turns.

• Challenge:

  • Ask more able students to consider the impact of human intervention on the natural cycle.
  • Offer “event creator” cards to higher-ability students to design a plausible environmental process.

---

Assessment Opportunities

• Formative:

  • Questioning during transitions.
  • Carbon Journey Map quality.
  • “Wonder Wall” questions reveal understanding depth.
  • Written paragraph (exit ticket).

• Summative:

  • Paragraph can be marked using GCSE-style mark schemes in a later lesson.

---

Extension Options

• Homework: Write a short story from the perspective of a carbon atom going through at least five stores — accurately linking processes.
• Next lesson: Use Wonder Wall questions to structure a class-led investigation or mini-project.

---

Teacher Reflection Prompt

After the lesson, reflect on:

• Which processes were most/least understood?
• How well did students articulate carbon transfer through both natural and human-influenced pathways?
• Did the game-based movement lead to deeper understanding or confusion for any learners?

---

Additional Notes

This lesson embeds exploratory talk, kinaesthetic learning, and scientific literacy, aligning with Ofsted's focus on ambitious and well-sequenced curriculum design. The gamified model transforms a traditionally diagram-heavy topic into something lived and dynamic — all while keeping paper-based skills alive.

---

Prepared by: Science Department Curriculum Design Lead
For: Year 11 GCSE Science – Ecology Strand
Lesson Format: Game-based, discussion-led, inquiry-inspired