Science MCQ Questions with Answers for Classes 3–10
Science questions in school tests, Olympiads and the Class 9 entrance papers check whether a child understands everyday science, not just definitions. The ten sample questions below each come with a short explanation of the idea behind the answer.
What science questions cover, class by class
Classes 3–5 (EVS)
- Plants: parts and how they make food
- Animals, food chains and habitats
- Water, air and weather
- The human body, health and nutrition
Classes 6–7
- Components of food
- Separation of substances
- Magnets, light and electricity
- Heat, acids, bases and salts
Class 8
- Crop production and microorganisms
- Metals and non-metals
- Force, pressure and friction
- Cells, sound and light
Classes 9–10
- Matter, atoms and molecules
- Motion, force and laws of motion
- Life processes and heredity
- Electricity, magnetic effects and chemical reactions
Free science sample test: 10 questions
Pick an answer to check it; the score updates as you go. Every question has a short explanation under “Show answer”.
Which gas do plants take in from the air to make food?
Show answer
Answer: C. Carbon dioxide
In photosynthesis, leaves take in carbon dioxide and, using sunlight and water, make food (glucose). Oxygen is given out.
Which organ pumps blood around the body?
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Answer: B. Heart
The heart is a muscle that pumps blood through the blood vessels. The lungs take in oxygen; the kidneys filter blood.
Which of these is NOT attracted by a magnet?
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Answer: C. Copper
Iron, nickel and cobalt are magnetic materials. Copper is a metal, but it is not attracted by a magnet.
At sea level, pure water boils at:
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Answer: C. 100 °C
Pure water boils at 100 °C at normal atmospheric pressure. (212 is the same temperature in degrees Fahrenheit.)
Water vapour turning into water droplets is called:
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Answer: B. Condensation
Condensation is gas changing to liquid, as on the outside of a cold glass. Evaporation is the opposite.
Which planet is closest to the Sun?
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Answer: C. Mercury
Mercury is the closest planet to the Sun, followed by Venus, Earth and Mars.
Our skin makes which vitamin when exposed to sunlight?
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Answer: C. Vitamin D
Sunlight on the skin helps the body make vitamin D, which is needed for strong bones and teeth.
Which of these lets electricity pass through it easily?
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Answer: D. Copper wire
Metals such as copper are good conductors. Wood, plastic and rubber are insulators, which is why wires are covered in plastic.
A solution with a pH less than 7 is:
Show answer
Answer: A. Acidic
On the pH scale, below 7 is acidic, 7 is neutral (pure water) and above 7 is basic. Lemon juice is acidic.
What is the SI unit of force?
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Answer: B. Newton
Force is measured in newtons (N). The joule is the unit of energy, the watt of power and the pascal of pressure.
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How to get better at science MCQs
- Learn each idea with an everyday example: condensation on a cold glass, a magnet picking up pins, a lemon being acidic.
- Draw and label the main diagrams (plant, heart, eye, circuit) from memory; many questions are built on them.
- Read every option: science MCQs often have two options that sound right, and only one fits exactly.
- After a chapter at school, take a short test on it the same week while it is fresh.
Science practice by class
Each class page lists its topics and has more sample questions.
Class 4
Food and digestion, the water cycle, plants and animals.
Class 5
Body systems, health and nutrition, plants and the environment.
Class 6
Components of food, separation of substances, motion and magnets.
Class 8
Microorganisms, metals and non-metals, force and pressure.
Class 9
Matter, atoms and molecules, motion, force and the cell.
Class 10
Chemical reactions, life processes, electricity and light.
Exams that test science
Sainik School (AISSEE)
The Class 9 paper has a General Science section (25 questions).
Rashtriya Military School CET
Science is 50 of the 100 marks in Class 9 Paper 2.
Scholarship exams and NMMS
The NMMS Scholastic Aptitude Test includes science from Classes 7 and 8.
Olympiads
Science Olympiads test application of the class syllabus.
More practice
These sample questions are free to try without an account. With an account, students get full topic-wise sets and timed mock tests, every answer explained, questions read aloud in English, Hindi or Marathi, and insights on strong and weak topics.
Frequently asked questions
Which classes are these science questions for?
Most suit Classes 5–8; the last two are from the Class 8–9 syllabus. Each class page has questions matched to that class.
Do entrance exams for Class 6 test science?
Not as a separate section. JNVST, AISSEE and the Rashtriya Military School test for Class 6 have no science section, though general knowledge questions sometimes touch on science. The Class 9 papers of AISSEE and the Rashtriya Military School CET do have a science section.
What is the best way to revise science before a test?
Short topic tests with explanations, plus redrawing the main diagrams from memory. Reviewing why each wrong option is wrong fixes most mistakes.