You will learn
- Place plants in food chains.
- Trace energy flow.
- Draw a food chain.
- Explain what happens if plants vanish.
Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.
Student lesson
- Plants start food chains.
- Energy comes from the Sun.
- Arrows show energy flow.
- Without plants other life cannot survive.
Words to know
a line showing who eats whom
a plant that makes food
a living thing that eats others
an animal that eats plants
1. Discover: The savannah chain
Grass grows in the sun. A zebra eats the grass and a lion eats the zebra. Fiifi draws: Sun to grass to zebra to lion. “The arrows show where energy goes,” says his teacher.
Think: What if the grass disappeared?
2. Understand: Food chains
Idea 1: Producers first
A food chain starts with a producer (plant). Herbivores eat plants. Carnivores eat other animals.
Idea 2: Arrows
Arrows point from the food to the eater, showing the direction of energy flow.
Idea 3: If plants vanish
Herbivores starve, then carnivores starve, and oxygen levels drop. Plants support almost all life.
3. Worked examples
Example 1 (I show you): Draw
Chain.
- Grass.
- Zebra.
- Lion.
Answer: Grass to zebra to lion.
Example 2 (We do it together): Name
Herbivore.
- Zebra.
- Eats plants.
- Grass eater.
Answer: Zebra.
Example 3 (You try): Predict
No grass.
Show the steps and answer
- Zebra hungry.
- Lion hungry.
- Chain breaks.
Answer: The chain collapses.
Did you know?
Only about ten percent of the energy at one level of a food chain passes to the next level.
Why this matters
Food chains show why protecting plants protects everything.
4. Explore: Chain cards
Use cards of local plants and animals to build three food chains and explain each arrow.
- Choose cards.
- Build a chain.
- Add arrows.
- Explain each arrow.
Think about it: what did you notice?
What did you notice? Every chain started with a plant.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- A ___ chain shows who eats whom.
- A ___ makes food.
- A ___ eats others.
- A ___ eats plants.
Guided practice
Question 1. What starts a chain?
Plant.
Question 2. What do arrows show?
Energy flow.
Question 3. What is a herbivore?
Plant eater.
Independent practice
Level 1: Start
- What starts a chain?
- What do arrows show?
- What is a herbivore?
- What is a carnivore?
- What is energy source?
Level 2: Grow
- Why plants first?
- Why 10 percent?
- Why protect plants?
Level 3: Stretch
- Build chains.
- Draw one.
- Explain.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
Explain what would happen if grass vanished.
Show a sample answer
Trace the chain.
Another one. Tell a family member one thing from this lesson. Use the words you learned.
Show a sample answer
A clear sentence that uses at least one word from Words to know.
7. Common mistakes
Fix: Energy flow.
Fix: Plants do.
8. Lesson summary and revision card
- I can place plants in food chains.
- I can trace energy flow.
- I can draw a food chain.
- I can explain what happens if plants vanish.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Plants start food chains.
- Energy comes from the Sun.
- Arrows show energy flow.
- Without plants other life cannot survive.
11. Next lesson
Next lesson: Plant adaptations. Keep going with the next idea in this course.
Exam practice
These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.
- Define producer and consumer. [2 marks]
- Draw a three-link chain. [4 marks]
- Explain what happens without plants. [2 marks]
- Safety rule. [2 marks]
Total: 10 marks.
Marking guide and model answers
- 1 each
- Producer [1]; herbivore [1]; carnivore [1]; arrows [1]
- Herbivores starve [1]; chain breaks [1]
- Any [1]; reason [1]
Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.
Printable worksheet
- What starts a chain?
- What do arrows show?
- What is a herbivore?
- What is a carnivore?
- What is energy source?
- Why plants first?
- Why 10 percent?
- Why protect plants?
- Build chains.
- Draw one.
Homework
Draw a food chain from your area.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What starts a chain? | Plant. | 1 |
| 2. What do arrows show? | Energy flow. | 1 |
| 3. What is a herbivore? | Plant eater. | 1 |
| 4. What is a carnivore? | Meat eater. | 1 |
| 5. What is energy source? | Sun. | 1 |
| 6. Why plants first? | Make food. | 1 |
| 7. Why 10 percent? | Energy lost. | 1 |
| 8. Why protect plants? | Support life. | 1 |
| 9. Build chains. | Cards. | 1 |
| 10. Draw one. | Diagram. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Plant.; 2 Energy flow.; 3 Plant eater.; 4 Meat eater.; 5 Sun.. Level 2: 1 Make food.; 2 Energy lost.; 3 Support life.. Level 3: 1 Cards.; 2 Diagram.; 3 Sentence..
Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.
Mastery and remediation
| Objective | Bronze (Developing) | Silver (Proficient) | Gold (Advanced) |
|---|---|---|---|
| O1 Place plants in food chains | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O2 Trace energy flow | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O3 Draw a food chain | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
| O4 Explain what happens if plants vanish | Shows this with help from an adult or a picture | Does this independently and explains how they know | Explains it clearly and uses it in a new situation |
Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.
If a learner struggles
- Find the misconception: “Arrows show who is bigger.” Energy flow.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Draw food chains.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child builds food chains. You do not need to be an expert to help.
- Trace your meal back to plants.
- Ask “Who eats whom?”
- Respect wildlife.
- Ask “how do you know?” after each answer, and listen.
- Praise effort, not only right answers. Mistakes are how we learn.
- Ten to fifteen minutes a day is better than one long session.
Teacher package
1–5. Objectives, prerequisites, materials, preparation, duration
Lesson objectives. Learners will: place plants in food chains; trace energy flow; draw a food chain; explain what happens if plants vanish.
Prerequisite knowledge. Grade 4 ideas: parts of a plant, what plants need, life cycles and simple food chains.
Materials. Cards, paper. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.
Preparation. Print cards.
Suggested duration. 45–60 minutes. It can be split into two shorter sessions.
6–9. Teaching procedure, explanation notes, guided and independent activities
Introduction (5 min). Ask, “Where does your dinner get energy?”
Explanation (10 min). Teach chains.
Guided activity (10 min). Learners build.
Independent activity (10 min). Learners explain.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. Who eats whom? Where does energy go?
Teacher explanation notes. Start with real objects and safe, hands-on observation. Then talk about what was seen, then draw and write. Always say “how do you know?”. Keep to the safety notes, and use local, safe materials.
10–12. Differentiation, formative assessment, common misconceptions
Support. Use real objects and pictures, short sentences and a partner. Let learners point, show or draw instead of writing. Extension. Ask learners to find a new example at home and explain how they know.
Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.
Misconceptions. “Arrows show who is bigger.” Energy flow.
13–15. Assessment questions, answer keys, marking scheme
Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.
16–19. Remediation, enrichment, homework, teacher reflection
Remediation. Draw food chains. Enrichment. Look for one new example near your home or school, draw it and explain it to someone. Homework. See above.
Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.
Sources and standards
This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Next Generation Science Standards, Cambridge Primary Science and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.
Research used to shape this lesson. Courseversity Science curriculum, Grade 5 Unit 3, topic 8; Next Generation Science Standards, matter and energy in organisms; Cambridge Primary Science Stage 5, biology: plants; IB Primary Years Programme, sharing the planet. These sources informed the lesson.