Green Olympiad: previous year questions and free practice, Classes 1 to 8
Practice based on previous year papers and the syllabus, every answer explained.
Classes: Class 1 · Class 2 · Class 3 · Class 4 · Class 5 · Class 6 · Class 7 · Class 8
Class 1
Class 1 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Section 1 | 25 | 1 |
| Higher Order Thinking | 10 | 2 |
| Total | 35 | 45 marks · 60 minutes |
Class 1 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Clean Water and Sanitation
- Affordable and Clean Energy
- Climate Action
- Sustainable Cities and Communities
- Food Security and Agriculture
- Responsible Consumption and Production
- Life On Land
- Life Below Water
Topics in previous year Class 1 Green Olympiad papers
Life Below Water · Affordable and Clean Energy · Life On Land · Sustainable Cities and Communities · Food Security and Agriculture · Climate Action
A sample question with the answer
1. Which of these is safe to drink?
- Drain water
- Puddle water
- Sea water
- Filtered water
Answer: D) Filtered water
Filtered water has had the dirt and germs taken out.Class 2
Class 2 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Section 1 | 25 | 1 |
| Higher Order Thinking | 10 | 2 |
| Total | 35 | 45 marks · 60 minutes |
Class 2 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Clean Water and Sanitation
- Affordable and Clean Energy
- Responsible Consumption and Production
- Climate Action
- Food Security and Agriculture
- Life Below Water
- Sustainable Cities and Communities
- Life On Land
Topics in previous year Class 2 Green Olympiad papers
Clean Water and Sanitation · Sustainable Cities and Communities · Affordable and Clean Energy · Responsible Consumption and Production · Climate Action
A sample question with the answer
1. Children on a picnic find a stream. The water looks clear. What should they do before drinking it?
- Drink it at once
- Filter and boil it first
- Keep it in the sun
- Add some sugar and drink it
Answer: B) Filter and boil it first
Clear water can still have germs, so it must be cleaned first.Class 3
Class 3 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 3 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Climate Action
- Food Security and Agriculture
- Life Below Water
- Life On Land
- Responsible Consumption and Production
- Clean Water and Sanitation
- Affordable and Clean Energy
- Sustainable Cities and Communities
A sample question with the answer
1. Why do we need clean water every day?
- To keep the roads cool in summer
- Only to wash cars and bikes
- Only to fill tanks and pools
- To drink, cook and stay healthy
Answer: D) To drink, cook and stay healthy
Our bodies need safe water to drink, and food must be cooked in it. Dirty water can make us ill.Class 4
Class 4 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 4 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Affordable and Clean Energy
- Clean Water and Sanitation
- Food Security and Agriculture
- Life Below Water
- Life On Land
- Responsible Consumption and Production
- Sustainable Cities and Communities
- Climate Action
Topics in previous year Class 4 Green Olympiad papers
Clean Water and Sanitation · Life On Land · Climate Action · Life Below Water · Food Security and Agriculture · Affordable and Clean Energy · Responsible Consumption and Production · Sustainable Cities and Communities
A sample question with the answer
1. Only a tiny part of the Earth's water is fresh water we can easily use. Where is most of the fresh water locked up?
- In the clouds
- In rivers, lakes and streams
- In ice caps and glaciers
- In village ponds
Answer: C) In ice caps and glaciers
Most fresh water is frozen in polar ice and glaciers. Only a little is in rivers, lakes and the ground.Class 5
Class 5 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 5 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Clean Water and Sanitation
- Affordable and Clean Energy
- Life On Land
- Food Security and Agriculture
- Life Below Water
- Sustainable Cities and Communities
- Responsible Consumption and Production
- Climate Action
A sample question with the answer
1. After floods, doctors in a town see many more children with stomach illness. What is the most likely cause?
- The cold rain made the children's food go stale
- Flood water mixed sewage into drinking water
- Wet clothes gave the children stomach aches
- Children ate far more sweets during the rain
Answer: B) Flood water mixed sewage into drinking water
Floods carry waste from drains and toilets into wells and pipes. Boiling water after a flood keeps families safe.Class 6
Class 6 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 6 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Affordable and Clean Energy
- Clean Water and Sanitation
- Food Security and Agriculture
- Life On Land
- Climate Action
- Responsible Consumption and Production
- Sustainable Cities and Communities
- Life Below Water
A sample question with the answer
1. A water treatment plant adds alum to river water and lets it stand in large tanks. What is this step for?
- Making fine mud clump together and settle
- Making the water taste sweeter
- Adding minerals for strong bones
- Killing every germ so no boiling is needed
Answer: A) Making fine mud clump together and settle
Alum gathers tiny mud particles into heavier lumps that sink.Class 7
Class 7 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 7 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Clean Water and Sanitation
- Life On Land
- Sustainable Cities and Communities
- Affordable and Clean Energy
- Food Security and Agriculture
- Responsible Consumption and Production
- Climate Action
- Life Below Water
A sample question with the answer
1. A family's water meter reads 52,340 litres on 1 March and 55,040 litres on 31 March. On average, how much water did the family use each day?
- 87 litres
- 2700 litres
- 9 litres
- 90 litres
Answer: D) 90 litres
They used 2700 litres in 30 days, which is 90 litres a day.Class 8
Class 8 Green Olympiad exam pattern
| Section | Questions | Marks each |
|---|---|---|
| Green Champ | 40 | 1 |
| Green Challenger | 10 | 2 |
| Total | 50 | 60 marks · 60 minutes |
Class 8 Green olympiads in 2026-27
- International Green Warrior Olympiad · CREST · ₹275
Syllabus topics
- Affordable and Clean Energy
- Clean Water and Sanitation
- Responsible Consumption and Production
- Climate Action
- Food Security and Agriculture
- Life Below Water
- Life On Land
- Sustainable Cities and Communities
A sample question with the answer
1. In a sewage treatment plant, what happens in the secondary stage?
- Sand and grit settle out first
- Large objects are first removed by screens
- Bacteria break down the dissolved waste
- Salt is removed from the water
Answer: C) Bacteria break down the dissolved waste
Sewage treatment runs in three stages: primary removes solids by screens and settling, secondary lets bacteria eat the dissolved waste, tertiary polishes and disinfects. Physical first, biological second, chemical last.Questions parents ask
Do you have previous year papers for the Green Olympiad?
We do not share the papers themselves. Our practice follows real papers and each class's paper pattern, each answer explained.
How should my child prepare for the Green Olympiad?
A few questions a day, and one timed mock paper a week. Then give extra time to the topics Parents' Corner marks "Practise next".
More free practice
Every olympiad for Class 1 · Every olympiad for Class 2 · Every olympiad for Class 3 · Every olympiad for Class 4 · Every olympiad for Class 5 · Every olympiad for Class 6 · Every olympiad for Class 7 · Every olympiad for Class 8
Olympiad Owl is a free, independent practice app. It is not connected with or endorsed by any Olympiad organiser; exam names are used only to describe what the practice is for. Every question is written for this app.