October 28, 2026
Class 5 Science Questions with Answers: Free Practice Set
10 Class 5 science questions with answers: plant reproduction, the human body, health and disease, changes of state and space.
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- class-5
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Class 5 science covers how plants reproduce, the skeletal, nervous and other body systems, diseases and how to prevent them, how matter changes state, and the Earth, space and natural resources.
These 10 Class 5 science questions come with answers and explanations.
What Class 5 Science covers
Brain & Bounce Kids splits Class 5 Science into these 10 topics. Linked topics have their own practice set.
- Living & Non-Living (Life Processes)
- Plants (Reproduction & Functions)
- Animals (Classification & Adaptations)
- Human Body Systems (Advanced)
- Food, Health & Diseases
- Matter (States & Changes)
- Force, Motion & Energy
- Light, Sound & Heat
- Earth, Space & Natural Resources
- Machines & Technology
10 Class 5 Science questions with answers
Ask your child to answer each question out loud first, then tap Show answer to check. The questions get a little harder as you go down each topic.
Plants (Reproduction & Functions)
Q1. Which part of the plant prepares food by photosynthesis?
A) Root
B) Leaf
C) Flower
D) Seed
Show answer
Answer: B) Leaf
Leaves contain chlorophyll, which helps plants prepare food using sunlight.
Q2. What is the first stage in the growth of a new plant from a seed?
A) Flowering
B) Germination
C) Pollination
D) Fertilization
Show answer
Answer: B) Germination
Germination is the process in which a seed begins to grow into a new plant.
Human Body Systems (Advanced)
Q3. Which organ helps us breathe by taking in oxygen?
A) Kidney
B) Lungs
C) Liver
D) Skin
Show answer
Answer: B) Lungs
The lungs absorb oxygen from the air and remove carbon dioxide from the body.
Q4. Which organ is the main control center of the human body?
A) Heart
B) Brain
C) Liver
D) Stomach
Show answer
Answer: B) Brain
The brain controls thinking, movement, senses, and body functions through the nervous system.
Food, Health & Diseases
Q5. Which habit helps prevent the spread of diseases?
A) Skipping meals
B) Washing hands with soap
C) Sleeping very late
D) Eating too much sugar
Show answer
Answer: B) Washing hands with soap
Washing hands with soap removes germs and helps prevent infections.
Q6. Which vitamin helps keep our bones and teeth strong?
A) Vitamin A
B) Vitamin B
C) Vitamin C
D) Vitamin D
Show answer
Answer: D) Vitamin D
Vitamin D helps the body absorb calcium, keeping bones and teeth healthy.
Matter (States & Changes)
Q7. What is the process called when water changes into water vapour?
A) Freezing
B) Evaporation
C) Condensation
D) Melting
Show answer
Answer: B) Evaporation
Evaporation changes liquid water into water vapour.
Q8. What is the process called when ice changes into water?
A) Freezing
B) Condensation
C) Melting
D) Evaporation
Show answer
Answer: C) Melting
Melting is the change of a solid into a liquid when heated.
More practice: Class 5 States of Matter Questions with Answers
Earth, Space & Natural Resources
Q9. What is the name of Earth's only natural satellite?
A) Mars
B) Sun
C) Moon
D) Venus
Show answer
Answer: C) Moon
The Moon is Earth's only natural satellite.
Q10. Which natural resource is renewable?
A) Coal
B) Petroleum
C) Wind
D) Natural Gas
Show answer
Answer: C) Wind
Wind is a renewable resource because it is naturally replenished.
How to help your child with Class 5 Science
- Connect it to what they see. Plants on the balcony, ice melting in a glass and shadows at different times of day are all science lessons.
- Ask "why?" after every answer. Science questions in Olympiads often test the reason, not the fact.
- Draw it. Labelling a plant, the parts of the body or the water cycle helps children remember structure.
- Keep it short and regular. A few questions a day keeps facts fresh far better than cramming before a test.
Olympiad connection
Science practice supports the NSO (National Science Olympiad). Its Level 1 paper tests the school science and EVS syllabus plus logical reasoning. Our NSO 2026-27 guide covers the pattern and a study plan. See our guides: Olympiad exams for Classes 1–5 · logical reasoning practice.
More practice sets
Class 5 Maths · Class 5 English · Class 5 Computer · Class 5 GK · Class 5 Reasoning · Class 4 Science · All practice questions
Practise more with Brain & Bounce Kids
These questions come from the Brain & Bounce Kids question bank. In the app, your child gets five minutes of Science practice a day at the right level for Class 5, an explanation after every answer, and a Parent Zone that shows which topics need work.
Frequently asked questions
- What topics are covered in Class 5 Science?
- Brain & Bounce Kids covers 10 topics in Class 5 Science: Living & Non-Living (Life Processes), Plants (Reproduction & Functions), Animals (Classification & Adaptations), Human Body Systems (Advanced), Food, Health & Diseases, Matter (States & Changes), Force, Motion & Energy, Light, Sound & Heat, Earth, Space & Natural Resources, Machines & Technology.
- Are these Class 5 Science questions useful for Olympiads?
- Yes. NSO (National Science Olympiad) Level 1 is built on the same school science and EVS topics. Olympiad questions add more "why" and application questions, so ask your child to explain each answer, not just pick it.
- How much Science practice does a Class 5 child need each day?
- Five to ten minutes a day is enough for most children in Classes 1–5. Short, regular practice with an explanation after each mistake works better than a long session once a week.