Class 8 Science Olympiad: previous year questions and free practice

Practice based on previous year papers (2018-19 to 2025-26) and the syllabus, every answer explained.

Class 8 Science Olympiad exam pattern

Section	Questions	Marks each
Logical Reasoning	10	1
Science	35	1
Achievers Section	5	3
Total	50	60 marks · 60 minutes

Class 8 Science olympiads in 2026-27

International Science Olympiad (formerly NSO) · SOF · ₹170
National Level Science Talent Search Examination · Unified Council · ₹350 online
CREST Science Olympiad · CREST · ₹275
International Olympiad of Science · SilverZone · fee shown when you register
Humming Bird Science Olympiad · Humming Bird · ₹150 to ₹200
International Science Olympiad (ITO) · Indian Talent · ₹175 school · ₹500 online
International Foundation Science Olympiad · IOF · ₹150

Class 8 Science topics in each olympiad

	SOF	UC	CREST	SZ	ITO	IOF
Force, Work and Energy	●	●	●	●	●	●
Light	●	●	●	●	●	●
Electricity and Magnets	●	●	●	●	●	●
Environment and Resources	●	●	●	●	●	●
Animals		●	●	●	●	●
Heat and Temperature	●	●	●	●		●
Cells and Microorganisms	●	●	●	●		●
Reproduction and Growth		●	●	●	●	●
Only in some exams
Plants		●	●	●	●
Crops and Agriculture			●	●	●	●
Reasoning	●			●	●	●
Health, Hygiene and Safety	●	●			●
Air, Water and Weather	●	●	●
Earth, Sky and Space	●		●			●
Matter and Materials	●	●			●
Sound			●	●		●
Diversity of Living Things	●	●			●
Fibres and Fabrics			●			●
Metals and Non-metals			●			●
Motion and Measurement	●				●
Food and Nutrition					●
Rocks and Soil					●
Physical and Chemical Changes					●
Life Processes					●
Science Around Us	●
Maths		●

UC Unified Council · SZ SilverZone · ITO Indian Talent. Humming Bird gives no class-wise topic list. Checked on each organiser's own syllabus, 8 Nov 2026.

A sample question with the answer

1. Anu wants to find out whether the temperature of the oil changes the time a puri takes to puff up. Which plan gives a fair test?

Change the flour, the thickness and the oil temperature together
Use thick puris in hot oil and thin puris in cooler oil
Fry one puri only and note how long it takes
Use puris of the same size and thickness, and change only the oil temperature

Answer: D) Use puris of the same size and thickness, and change only the oil temperature

Fair test: change one variable (oil temperature), keep all others equal (puri size, thickness, flour). One change at a time.

Questions parents ask

Do you have previous year papers for the Class 8 Science Olympiad?

We do not share the papers themselves. Our practice follows real papers from 2018-19 to 2025-26, in the same pattern, each with its answer explained.

How should my child prepare for the Class 8 Science 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". The hardest section carries more marks, so practise it too.

More free practice

Class 8: Maths · English · General Knowledge · Computer · Social Studies · Spell Bee · Talent Test · Reasoning · Mental Maths · Green · Space

Science: Class 1 · Class 2 · Class 3 · Class 4 · Class 5 · Class 6 · Class 7

Every olympiad for Class 8 · All olympiads A to Z

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.