Class 7 Science Practice Questions

19 free practice MCQs for Class 7 Science, following the school syllabus — playable as an adaptive quiz in English, Hindi, Tamil, Telugu, Bengali and 8 more Indian languages. No sign-up, no ads.

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Sample questions with answers

Q1. Which nutrient helps in building muscles and repairing body tissues? 🔬

  1. Fats
  2. Vitamins
  3. Proteins
  4. Carbohydrates
Show answer

C. Proteins

Q2. Heat travels from a hotter body to a cooler body by which method through a vacuum? 🔬

  1. Conduction
  2. Convection
  3. Absorption
  4. Radiation
Show answer

D. Radiation

Q3. The speed of light in vacuum is approximately? 🔬

  1. 3 × 10⁸ m/s
  2. 3 × 10⁶ m/s
  3. 3 × 10⁴ m/s
  4. 3 × 10¹⁰ m/s
Show answer

A. 3 × 10⁸ m/s

Q4. Which deficiency disease is caused by lack of Vitamin C? 🔬

  1. Rickets
  2. Night blindness
  3. Anaemia
  4. Scurvy
Show answer

D. Scurvy

Q5. Which of the following is a type of motion in a straight line? 🔬

  1. Circular motion
  2. Rotational motion
  3. Rectilinear motion
  4. Oscillatory motion
Show answer

C. Rectilinear motion

Q6. Which organ in the human body purifies the blood? 🔬

  1. Lungs
  2. Heart
  3. Liver
  4. Kidney
Show answer

D. Kidney

Q7. Which type of soil is best suited for growing cotton? 🔬

  1. Alluvial soil
  2. Sandy soil
  3. Black cotton soil
  4. Laterite soil
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C. Black cotton soil

Q8. A solution that turns blue litmus red is called? 🔬

  1. Acid
  2. Base
  3. Salt
  4. Neutral
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A. Acid

Q9. Which gas is produced when baking soda reacts with vinegar? 🔬

  1. Nitrogen
  2. Carbon dioxide
  3. Hydrogen
  4. Oxygen
Show answer

B. Carbon dioxide

Q10. Which part of the plant absorbs water and minerals from the soil? 🔬

  1. Flowers
  2. Leaves
  3. Roots
  4. Stem
Show answer

C. Roots

Q11. What is the process by which green plants make their own food?

  1. Photosynthesis
  2. Respiration
  3. Condensation
  4. Digestion
Show answer

A. Photosynthesis

Q12. Which gas do plants absorb during photosynthesis?

  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Hydrogen
Show answer

B. Carbon dioxide

Q13. Which gas do plants release during photosynthesis?

  1. Carbon dioxide
  2. Nitrogen
  3. Oxygen
  4. Hydrogen
Show answer

C. Oxygen

Q14. The change of a liquid into vapour on heating is called:

  1. Condensation
  2. Digestion
  3. Respiration
  4. Evaporation
Show answer

D. Evaporation

Q15. What is the chemical symbol of this element? Sodium

  1. Na
  2. So
  3. Sd
  4. Nu
Show answer

A. Na

Q16. What is the chemical symbol of this element? Potassium

  1. Po
  2. K
  3. Pt
  4. Ka
Show answer

B. K

Q17. What is the chemical symbol of this element? Calcium

  1. Cl
  2. Cm
  3. Ca
  4. Co
Show answer

C. Ca

Q18. What is the chemical symbol of this element? Copper

  1. Co
  2. Cr
  3. Ce
  4. Cu
Show answer

D. Cu

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