# 30 Science Olympiad Questions for Class 6 with Answers
Are you looking for Science Olympiad questions for Class 6 with answers?
Welcome to Olympiad Digital's Class 6 Science Olympiad Practice Test!
Class 6 Science introduces students to many fascinating concepts about food, plants, animals, materials, motion, living organisms, electricity, light, water and our environment.
This free practice test contains 30 multiple-choice questions designed to improve:
- Science knowledge
- Conceptual understanding
- Observation skills
- Logical thinking
- Application skills
- Problem-solving
- Higher-order thinking
Try to solve all questions before checking the answers.
Let's begin!
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# 🔬 CLASS 6 SCIENCE OLYMPIAD PRACTICE TEST
## Question 1 – Components of Food
Which nutrient is mainly responsible for growth and repair of body tissues?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Answer: B. Proteins
---
## Question 2 – Components of Food
Which nutrient is the main source of energy for our body?
A. Carbohydrates
B. Minerals
C. Water
D. Vitamins
Answer: A. Carbohydrates
---
## Question 3 – Balanced Diet
Which of the following is the best example of a balanced diet?
A. Only rice
B. Only fruits
C. A variety of foods providing different nutrients
D. Only sweets
Answer: C. A variety of foods providing different nutrients
---
## Question 4 – Food Sources
Which of the following is obtained from a plant?
A. Milk
B. Honey
C. Wheat
D. Egg
Answer: C. Wheat
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# 🌱 PLANTS
## Question 5 – Parts of a Plant
Which part of a plant generally absorbs water and minerals from the soil?
A. Stem
B. Root
C. Leaf
D. Flower
Answer: B. Root
---
## Question 6 – Photosynthesis
Which part of a green plant mainly prepares food?
A. Root
B. Stem
C. Leaf
D. Flower
Answer: C. Leaf
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## Question 7 – Plant Functions
What is the main function of the stem?
A. To absorb water directly from air
B. To support the plant and transport materials
C. To make seeds only
D. To produce soil
Answer: B. To support the plant and transport materials
---
## Question 8 – Plant Reproduction
Which part of a flower can develop into a fruit after fertilisation?
A. Sepal
B. Petal
C. Ovary
D. Anther
Answer: C. Ovary
---
# 🐘 ANIMALS AND LIVING ORGANISMS
## Question 9 – Living Organisms
Which characteristic is common to all living organisms?
A. They all walk
B. They all have wings
C. They perform life processes
D. They all live on land
Answer: C. They perform life processes
---
## Question 10 – Animal Habitats
A camel is well adapted to living in:
A. Polar regions
B. Deserts
C. Oceans
D. Rainforests
Answer: B. Deserts
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## Question 11 – Adaptation
Which feature helps a polar bear survive in a very cold region?
A. Thick fur and a layer of fat
B. Long roots
C. Scales
D. Gills
Answer: A. Thick fur and a layer of fat
---
## Question 12 – Aquatic Animals
Which animal breathes through gills?
A. Cow
B. Fish
C. Sparrow
D. Dog
Answer: B. Fish
---
# 🧵 MATERIALS AND THEIR PROPERTIES
## Question 13 – Materials
Which material is generally transparent?
A. Wood
B. Clear glass
C. Cardboard
D. Stone
Answer: B. Clear glass
---
## Question 14 – Solubility
Which substance dissolves readily in water?
A. Sand
B. Sugar
C. Stone
D. Wood
Answer: B. Sugar
---
## Question 15 – Separation of Substances
Which method can be used to separate sand from water?
A. Filtration
B. Churning
C. Handpicking only
D. Melting
Answer: A. Filtration
---
## Question 16 – Separation
Which method is suitable for obtaining salt from salt water?
A. Filtration
B. Evaporation
C. Sieving
D. Handpicking
Answer: B. Evaporation
---
# 🌡️ HEAT
## Question 17 – Temperature
Which instrument is used to measure temperature?
A. Barometer
B. Thermometer
C. Compass
D. Measuring cylinder
Answer: B. Thermometer
---
## Question 18 – Heat
Which material is generally a good conductor of heat?
A. Copper
B. Wood
C. Plastic
D. Rubber
Answer: A. Copper
---
## Question 19 – Heat Transfer
Why are cooking utensils often made of metals?
A. Metals are always light
B. Metals conduct heat well
C. Metals cannot be heated
D. Metals absorb water
Answer: B. Metals conduct heat well
---
# 💡 ELECTRICITY
## Question 20 – Electric Circuit
Which component provides electrical energy in a simple circuit?
A. Switch
B. Cell
C. Bulb
D. Wire
Answer: B. Cell
---
## Question 21 – Electric Circuit
A bulb glows when:
A. The circuit is complete
B. The circuit is open
C. There is no cell
D. The wire is broken
Answer: A. The circuit is complete
---
## Question 22 – Conductors
Which is a good conductor of electricity?
A. Copper
B. Rubber
C. Plastic
D. Wood
Answer: A. Copper
---
# 💡 LIGHT, SHADOWS AND REFLECTIONS
## Question 23 – Light
Which object is a natural source of light?
A. Mirror
B. Sun
C. Chair
D. Book
Answer: B. Sun
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## Question 24 – Shadows
A shadow is generally formed when:
A. Light passes freely through an opaque object
B. An opaque object blocks light
C. There is no light
D. Water produces light
Answer: B. An opaque object blocks light
---
## Question 25 – Reflection
Which object can reflect light and form an image?
A. Mirror
B. Cloth
C. Paper
D. Sand
Answer: A. Mirror
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# 🌍 WATER, AIR AND ENVIRONMENT
## Question 26 – Water Cycle
Water changes into water vapour due to heating. This process is called:
A. Condensation
B. Evaporation
C. Freezing
D. Filtration
Answer: B. Evaporation
---
## Question 27 – Air
Which gas is essential for breathing?
A. Oxygen
B. Carbon dioxide
C. Hydrogen
D. Helium
Answer: A. Oxygen
---
## Question 28 – Environment
Which action helps conserve water?
A. Leaving taps running
B. Repairing leaking taps
C. Wasting drinking water
D. Washing roads unnecessarily
Answer: B. Repairing leaking taps
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# 🧠 SCIENCE HOTS
## Question 29 – HOTS
A student places a plant in a dark room for several days.
What is most likely to happen?
A. The plant will become healthier
B. The plant may become weak because it cannot make enough food
C. The plant will grow faster
D. The plant will produce more flowers
Answer: B. The plant may become weak because it cannot make enough food
Explanation:
Green plants need light for photosynthesis, the process by which they prepare food.
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## Question 30 – FINAL CHALLENGE
A student has two identical glasses.
Glass A contains sugar dissolved in water.
Glass B contains sand mixed with water.
Which statement is correct?
A. Both mixtures can be separated by filtration in exactly the same way
B. Sugar can be recovered by evaporation, while sand can be separated by filtration
C. Sand dissolves completely in water
D. Sugar remains at the bottom like sand
Answer: B. Sugar can be recovered by evaporation, while sand can be separated by filtration.
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# 🏆 COMPLETE ANSWER KEY
| Q. | Answer | Q. | Answer |
|---|---|---|---|
| 1 | B | 16 | B |
| 2 | A | 17 | B |
| 3 | C | 18 | A |
| 4 | C | 19 | B |
| 5 | B | 20 | B |
| 6 | C | 21 | A |
| 7 | B | 22 | A |
| 8 | C | 23 | B |
| 9 | C | 24 | B |
| 10 | B | 25 | A |
| 11 | A | 26 | B |
| 12 | B | 27 | A |
| 13 | B | 28 | B |
| 14 | B | 29 | B |
| 15 | A | 30 | B |
---
# 📊 CHECK YOUR SCORE
Give yourself 1 mark for every correct answer.
### 🏆 27–30 — SCIENCE OLYMPIAD CHAMPION
Outstanding!
Your science concepts and application skills are excellent.
### 🌟 23–26 — EXCELLENT
Very strong performance.
Keep practising HOTS questions.
### 👍 18–22 — VERY GOOD
You have a good science foundation.
Review the questions you missed.
### 💪 12–17 — GOOD START
Keep revising concepts and practise regularly.
### 📚 BELOW 12 — KEEP PRACTISING
Don't worry!
Go topic by topic and try the test again.
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# 🎯 IMPORTANT CLASS 6 SCIENCE TOPICS
For Olympiad preparation, students should practise topics such as:
- Components of Food
- Food Sources
- Sorting Materials
- Separation of Substances
- Changes Around Us
- Getting to Know Plants
- Body Movements
- Living Organisms and Their Surroundings
- Motion and Measurement
- Light, Shadows and Reflections
- Electricity
- Fun with Magnets
- Water
- Air Around Us
- Garbage and Waste Management
Students should focus not only on remembering facts but also on understanding how and why things happen.
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# 🧠 HOW TO PREPARE FOR SCIENCE OLYMPIAD
## Step 1 – Understand the Concept
Don't simply memorise definitions.
Understand what the concept means.
## Step 2 – Observe Everyday Life
Science is everywhere.
Look at plants, food, water, electricity, shadows and materials around you.
## Step 3 – Ask WHY
For example:
Why does ice melt?
Why does a bulb glow?
Why does a shadow form?
Why do plants need light?
## Step 4 – Practise Questions
Solve different types of MCQs.
## Step 5 – Learn From Mistakes
Every wrong answer shows you what you need to revise.
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# ⏰ 20-MINUTE DAILY SCIENCE PLAN
### 5 Minutes
Read one science concept.
### 5 Minutes
Observe something related to the concept around you.
### 5 Minutes
Solve 5 MCQs.
### 5 Minutes
Review mistakes.
Small daily practice can make a big difference.
---
# 👨👩👧 PARENT TIP
Instead of asking:
"Did you learn the answer?"
Ask:
"Why does this happen?"
"What did you observe?"
"Can you explain it in your own words?"
"Can you give me an example from daily life?"
This helps develop scientific thinking.
---
# 🔬 SCIENCE THINKING CHALLENGE
Try answering these without looking them up:
### Challenge 1
Why does a metal spoon feel colder than a wooden spoon in the same room?
### Challenge 2
Why does a shadow change its length during the day?
### Challenge 3
Why should we not waste clean drinking water?
### Challenge 4
Why does a bulb not glow when a circuit is open?
### Challenge 5
Why do plants kept without enough light become weak?
Write your answers in your own words.
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# 📈 TRACK YOUR PROGRESS
| Test | Score | Accuracy |
|---|---:|---:|
| Test 1 | 18/30 | 60% |
| Test 2 | 21/30 | 70% |
| Test 3 | 24/30 | 80% |
| Test 4 | 27/30 | 90% |
| Test 5 | 30/30 | 100% |
Your goal:
## UNDERSTAND → OBSERVE → THINK → SOLVE
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👉 Olympiad Exam Syllabus for Classes 1–12
👉 Olympiad Books and Study Resources
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# 📚 FINAL THOUGHTS
Science is not just a subject to study for an examination.
Science helps us understand the world around us.
Observe.
Ask questions.
Think logically.
Experiment safely.
Learn from mistakes.
And keep exploring.
Remember:
### 🔬 Observe.
### ❓ Ask.
### 🧠 Think.
### 🧪 Explore.
### 🏆 Improve.
**Olympiad Digital**
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