Class-3-Science Olympiad Questions and Answers
Class 3 Science Olympiad Questions with Answers are designed to strengthen young learners’ conceptual understanding of basic science topics such as plants, animals, energy, the human body, and natural phenomena. These aptitude test practice sets help students develop logical and scientific thinking through engaging, objective-type questions. Each question comes with an easy explanation to encourage curiosity and concept clarity. Olympiad-style aptitude questions and answers PDFs are perfect for both school-level and national-level exam preparation. Students can take free online tests to track progress and build confidence. This section is ideal for early learners aiming to excel in competitive school science exams.
Class-3-Science Olympiad
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157 questions
12. Which of the following characteristics is shared by all the animals in the given box?
- They lay eggs
- They can live on land and in water
- Their bodies are covered with scales
- They look after their young ones
13. Based on the given information, which of the following statements is true about the lost animal?
- It is a carnivore
- It gives birth to young ones
- It lives only on land
- It lays one egg at a time
14. Jyoti placed a goldfish in a water tank. She added a pump to provide air for the goldfish. However, after a week, she found that the goldfish died. What could have happened?
- There was no air for the goldfish
- There was no sunlight for the goldfish to make food
- There was no food for the goldfish
- There was no water for the goldfish
15. I am colourless and odourless. I do not have a fixed shape. Which of the following best fits the description given?
- Ice
- Milk
- Water
- Mango Juice.
16. Which of the following are liquid states of water? (i) Water vapour (ii) Rain (iii) Clouds (iv) Dew
- (ii) & (iii) only
- (ii) & (iv)
- (ii), (iii) & (iv)
- All of these
17. The water used in washing fruits and vegetables can be reused for
- Mopping floor
- Washing hands and face
- Watering plants
- Both (A) & (C)
18. What happens right before rain falls ?
- Sun heats the water
- Water flows to the ocean
- Water forms clouds
- Water rises into the air.
19. What happens right after water flows to the ocean?
- Sun heats the water
- Water rises into the air
- Water forms clouds
- Rain falls.
20. During which part of the cycle does water change into a gas called water vapour?
- Step 1
- Step 3
- Step 4
- Step 5