20 Science Olympiad Questions for Class 1 with Answers

Are you looking for Science Olympiad questions for Class 1 with answers?

Science becomes more interesting when children learn by observing the world around them.

This free Class 1 Science Olympiad practice test contains 20 age-appropriate questions covering:

• Living and non-living things

• Plants

• Animals

• Human body

• Good habits

• Safety

• Air

• Water

• Weather

• The sky

• Logical thinking

Try to answer all the questions before checking the answers.

Let's begin!

Class 1 Science Olympiad Practice Questions

Question 1 – Living and Non-Living Things

Which of the following is a living thing?

A. Chair
B. Stone
C. Dog
D. Pencil

Answer: C. Dog

Explanation:

A dog is a living thing. It grows, breathes, needs food and responds to its surroundings.

Question 2 – Plants

Which part of a plant usually absorbs water from the soil?

A. Flower
B. Root
C. Leaf
D. Fruit

Answer: B. Root

Explanation:

Roots absorb water and minerals from the soil.

Question 3 – Plants

Which part of a plant is usually green and helps the plant make food?

A. Leaf
B. Root
C. Seed
D. Fruit

Answer: A. Leaf

Explanation:

Green leaves help plants make food using sunlight.

Question 4 – Animals

Which animal is commonly kept as a pet?

A. Lion
B. Tiger
C. Dog
D. Elephant

Answer: C. Dog

Explanation:

Dogs are commonly kept as pets.

Question 5 – Animal Homes

Where does a bird usually live?

A. Nest
B. Stable
C. Kennel
D. Burrow

Answer: A. Nest

Explanation:

Birds commonly build nests for shelter and raising their young ones.

Question 6 – Human Body

Which organ helps us see?

A. Ear
B. Nose
C. Eye
D. Tongue

Answer: C. Eye

Explanation:

We use our eyes for seeing.

Question 7 – Sense Organs

Which sense organ helps us hear sounds?

A. Eye
B. Ear
C. Nose
D. Skin

Answer: B. Ear

Question 8 – Food

Which is generally a healthy food choice?

A. Fresh fruit
B. Too many sweets
C. Chips every day
D. Sugary drinks

Answer: A. Fresh fruit

Explanation:

Fresh fruits can provide important nutrients and are generally part of a healthy diet.

Question 9 – Good Habits

Which is a good habit?

A. Not washing hands
B. Brushing teeth regularly
C. Throwing waste on the road
D. Eating without washing hands

Answer: B. Brushing teeth regularly

Question 10 – Safety

What should you do before crossing a road?

A. Run without looking
B. Look carefully for traffic and cross safely
C. Close your eyes
D. Play on the road

Answer: B. Look carefully for traffic and cross safely

Explanation:

Children should follow safe road-crossing rules and use designated crossings where available.

🌟 Challenge Round

Now let's try some questions that require a little more thinking.

Question 11 – Air

Which of the following is all around us?

A. Air
B. Stone
C. Pencil
D. Book

Answer: A. Air

Explanation:

Air surrounds us even though we cannot normally see it.

Question 12 – Water

Which of these needs water to live?

A. Plant
B. Chair
C. Table
D. Toy car

Answer: A. Plant

Explanation:

Plants need water along with other requirements such as sunlight and suitable soil to grow.

Question 13 – Weather

Which type of weather usually requires an umbrella?

A. Rainy
B. Sunny
C. Dry
D. Clear

Answer: A. Rainy

Question 14 – The Sky

Which object do we commonly see shining brightly during the daytime?

A. Moon
B. Sun
C. Star
D. Cloud

Answer: B. Sun

Question 15 – Animals

Which animal lives mainly in water?

A. Fish
B. Cow
C. Horse
D. Dog

Answer: A. Fish

Question 16 – Animal Food

Which animal commonly eats grass?

A. Cow
B. Lion
C. Tiger
D. Eagle

Answer: A. Cow

Question 17 – Living Things

Which statement is true about living things?

A. They never grow
B. They do not need food
C. Many living things grow and need food or nutrients
D. They are always made of metal

Answer: C. Many living things grow and need food or nutrients

Question 18 – Observation

Riya sees a plant kept in a pot.

She gives it water regularly and keeps it where it can receive sunlight.

Why is she doing this?

A. To help the plant grow
B. To make the pot heavier
C. To change the colour of the pot
D. To make the soil disappear

Answer: A. To help the plant grow

Question 19 – Reasoning

Which one does NOT belong with the others?

A. Rose
B. Mango
C. Sunflower
D. Dog

Answer: D. Dog

Explanation:

Rose, mango and sunflower are plants.

Dog is an animal.

Question 20 – Olympiad Challenge

A child sees dark clouds in the sky and hears thunder.

What weather is most likely to follow?

A. Rain
B. Snow in every situation
C. Bright sunshine immediately
D. No change in weather is possible

Answer: A. Rain

Explanation:

Dark clouds and thunder can be signs of an approaching rainstorm.

🏆 Answer Key

⭐ Check Your Score

🏆 18–20 Correct — Excellent!

Fantastic!

You have demonstrated excellent observation and basic science understanding.

⭐ 15–17 Correct — Very Good!

Great work!

Review the questions you missed and try similar questions again.

👍 10–14 Correct — Good Start!

You are building a good foundation.

Practise plants, animals, human body and everyday science regularly.

💪 Below 10 — Keep Practising!

Don't worry.

Science is all around us.

Observe, ask questions and learn every day.

📚 Important Class 1 Science Olympiad Topics

The exact syllabus depends on the particular Olympiad.

For example, the current SOF International Science Olympiad Class 1 syllabus includes:

• Living and non-living things

• Plants

• Animals

• Human beings and their needs

• Good habits

• Safety rules

• Air

• Water

• Weather

• The sky

It also includes logical reasoning and higher-order thinking questions.

Another current Class 1 Science Olympiad syllabus includes areas such as body parts, sense organs, family and school, seasons, transport, animals, food, safety and traffic rules.

Therefore, parents should always check the official syllabus of the specific Olympiad before preparing.

🧠 How to Prepare for Class 1 Science Olympiad

Science preparation for a young child does not need to be limited to books.

Use the world around the child.

Look at a Plant

Ask:

What is the root?

What are the leaves doing?

What does the plant need to grow?

Observe Animals

Ask:

Where does this animal live?

What does it eat?

What is its baby called?

Observe Weather

Ask:

Is the sky cloudy?

Is it windy?

Does it look like rain?

These simple activities can make science much more interesting.

⏰ Simple Daily Science Routine

A Class 1 student can start with a short routine.

5 minutes

Read or revise one concept.

10 minutes

Solve 5–10 questions.

5 minutes

Observe something around you.

5 minutes

Discuss what you learned.

Total: About 25 minutes

The exact duration should be adjusted according to the child's age, school schedule and attention span.

👨👩👧 Parent Tip

Instead of giving the answer immediately, encourage your child to think.

For example:

Parent: Why does a plant need water?

Child: To grow.

Parent: What else does it need?

This simple conversation develops curiosity.

🔬 Turn Everyday Life Into Science

You don't need a laboratory to teach Class 1 Science.

Try these simple activities:

Activity 1 – Floating and Sinking

Place safe household objects in water and observe which float and which sink.

Activity 2 – Plant Observation

Observe a plant every few days.

Look for new leaves or changes.

Activity 3 – Weather Diary

Draw the weather each day:

☀️ Sunny

☁️ Cloudy

🌧️ Rainy

Activity 4 – Sense Organs

Ask the child to identify things they can:

See

Hear

Smell

Taste

Touch

🎯 Don't Make Science Memorisation-Only

Instead of asking:

"What is the answer?"

also ask:

"Why?"

"How do you know?"

"What would happen if...?"

"Can you give another example?"

These questions encourage scientific thinking.

📈 Keep a Progress Record

Parents can maintain a simple record:

This helps identify areas that need more practice.

🌟 More Olympiad Resources

If your child enjoyed this Class 1 Science practice test, explore more resources on Olympiad Digital:

👉 20 Maths Olympiad Questions for Class 1

👉 20 Maths Olympiad Questions for Class 2

👉 20 Maths Olympiad Questions for Class 3

👉 How to Start Olympiad Preparation from Class 1

👉 How to Prepare for Olympiad Exams at Home

👉 How to Improve Olympiad Score and Rank

👉 Olympiad Exam Syllabus for Classes 1–12

We are building a growing collection of Olympiad learning resources for students from Classes 1–12.

Final Thoughts

Science is not only something students read in a textbook.

It is all around us.

Plants grow.

Animals move.

Water changes.

Clouds appear.

The Sun gives us light.

Our bodies help us explore the world.

Encourage your child to observe, ask questions and think.

That is where scientific learning begins.

🔬 Observe.

🧠 Think.

📚 Learn.

🌟 Improve.

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