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
21. Which of the following in a misfortune brought by water?
- Water breaks into flood
- It quenches out thirst
- It waters field
- It fills up lakes and springs
22. Water ----->heat-------->'X' What does 'X' represent ?
- Dew
- Rain
- Water vapour
- Ice
23. Mr. Verma reuses water which was used to wash vegetables, to water his plants. He is practising _________ off water.
- Pollution
- Conservation
- Evaporation
- Desalination
25. Select the INCORRECT statement.
- Water exists in three forms
- All living things need water
- Sea water is sweet
- Impure water causes diseases.
26. Which sequence shows the correct changes in the state of water during melting?
- Solid ----> Liquid
- Liquit ----> Gas
- Gas ------> Solid
- Liquid -----> Solid
27. Given below are names of four food items. Three out of the four are some what similar to each other. Find the odd one out ?
- Egg
- Butter
- Meat
- Broccoli
28. Which of the following oils can be used for cooking ?
- Mustard oil
- Coconut oil
- Groundnut oil
- All of these
29. I am a land plant. My leaves are used as vegetable and seeds are used to produce oil. The description is about
- Mustard
- Spinach
- Broccoli
- Cabbage
30. I often taste delicious. but my job is to hold and protect the seed. 'I' stands for
- Flower
- Root
- Fruit
- Leaves