You will learn
- Say why saving energy matters.
- List ways to save energy.
- Measure how long lights are on.
- Make an energy-saving plan.
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
- We can save energy at home.
- Switching off lights helps.
- Using the Sun saves fuel.
- Renewable energy is replaced naturally.
Words to know
to save and use carefully
to use more than needed
to turn off a device
able to be used again and again, like sunshine
1. Discover: The lights left on
At the end of school, Efua notices the classroom lights and fan are still on. She switches them off. “That saves electricity,” says her teacher. “And it saves money.” The class decides to make “Switch off” signs.
Think: Why does switching off help?
2. Understand: Saving energy
Idea 1: Why save energy?
Making energy often burns fuel and can cause pollution. Saving energy saves money and helps the environment.
Idea 2: Ways to save
Switch off lights and fans when not needed, open curtains for daylight, walk instead of riding, cook with lids on pots. Do not waste energy.
Idea 3: Renewable
The Sun and wind are renewable: they are always there. Solar panels, solar cookers and windmills use them. Drying clothes in the sun saves energy.
3. Worked examples
Example 1 (I show you): Save?
Lights on in daylight.
- Wastes energy.
- Switch off.
- Open curtains.
Answer: Switch off when not needed.
Example 2 (We do it together): Renewable
Sun for drying.
- Free.
- Always there.
- Renewable.
Answer: Sun is renewable.
Example 3 (You try): Walk
Short trip.
Show the steps and answer
- Walk.
- No fuel.
- Healthy.
Answer: Walking saves fuel.
Did you know?
Switching to LED bulbs can cut lighting energy use by up to 80 per cent.
Why this matters
Saving energy helps our families and our planet.
4. Explore: Energy audit
Count the lights and fans on at school and plan savings.
- Walk with an adult.
- Count devices on.
- Decide which can be off.
- Make a poster.
Think about it: what did you notice?
What did you notice? Some were on for no reason.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- We can ___ off lights.
- The Sun is ___.
- Walking saves ___.
- Waste means using ___ than needed.
Guided practice
Question 1. What does conserve mean?
Save.
Question 2. Name a way to save energy.
Switch off lights.
Question 3. What is renewable?
Can be used again.
Independent practice
Level 1: Start
- What does conserve mean?
- Name a way to save energy.
- What is renewable?
- What saves fuel?
- What is waste?
Level 2: Grow
- Why open curtains?
- Why dry clothes in the sun?
- Why lids on pots?
Level 3: Stretch
- Make a savings plan.
- Poster.
- Explain renewable.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
How does your family save energy?
Show a sample answer
Switch off, solar.
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: Some sources run out.
Fix: They add up.
8. Lesson summary and revision card
- I can say why saving energy matters.
- I can list ways to save energy.
- I can measure how long lights are on.
- I can make an energy-saving plan.
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
- We can save energy at home.
- Switching off lights helps.
- Using the Sun saves fuel.
- Renewable energy is replaced naturally.
11. Next lesson
Next lesson: Science at home. 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.
- Why save energy? [2 marks]
- Name three ways. [3 marks]
- What is renewable? [1 mark]
- Make a plan. [3 marks]
- Safety rule? [1 mark]
Total: 10 marks.
Marking guide and model answers
- Money [1]; environment [1]
- Any three [1 each]
- Replaced naturally [1]
- Three steps [3]
- Do not touch plugs [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 does conserve mean?
- Name a way to save energy.
- What is renewable?
- What saves fuel?
- What is waste?
- Why open curtains?
- Why dry clothes in the sun?
- Why lids on pots?
- Make a savings plan.
- Poster.
Homework
Make an energy-saving plan for your home and share it.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. What does conserve mean? | Save. | 1 |
| 2. Name a way to save energy. | Switch off lights. | 1 |
| 3. What is renewable? | Can be used again. | 1 |
| 4. What saves fuel? | Walking. | 1 |
| 5. What is waste? | Too much use. | 1 |
| 6. Why open curtains? | Daylight. | 1 |
| 7. Why dry clothes in the sun? | Free energy. | 1 |
| 8. Why lids on pots? | Heat stays. | 1 |
| 9. Make a savings plan. | Five steps. | 1 |
| 10. Poster. | Poster. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 Save.; 2 Switch off lights.; 3 Can be used again.; 4 Walking.; 5 Too much use.. Level 2: 1 Daylight.; 2 Free energy.; 3 Heat stays.. Level 3: 1 Five steps.; 2 Poster.; 3 Examples..
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 Say why saving energy matters | 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 List ways to save energy | 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 Measure how long lights are on | 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 Make an energy-saving plan | 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: “Energy is endless.” Some sources run out.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Give five ways to save energy and explain why.
- 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 learns how to save energy. You do not need to be an expert to help.
- Find lights left on.
- Ask, “What can we switch off?”
- Make a plan.
- 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: say why saving energy matters; list ways to save energy; measure how long lights are on; make an energy-saving plan.
Prerequisite knowledge. Grade 1 ideas: light and shadows, sounds around us and what makes sound.
Materials. Paper, crayons and tally sheets. 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. Prepare audit sheets. Prepare posters.
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, “Who left the light on?”
Explanation (10 min). Teach energy saving.
Guided activity (10 min). Learners audit.
Independent activity (10 min). Learners make plans.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. How can we save energy? Why?
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. “Energy is endless.” Some sources run out.
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. Give five ways to save energy and explain why. 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 2 Unit 9, topic 9; Next Generation Science Standards, waves and energy (1-PS4 light and sound foundations); Cambridge Primary Science Stage 2, light, sound and energy; IB Primary Years Programme, how the world works. These sources informed the lesson.