CBSE Class 7 Science Question Paper Set 25

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Official CBSE Exam Papers for Class 7 Science

Access comprehensive previous year question papers for Class 7 Science using the CBSE Class 7 Science Question Paper Set 25. Designed to align with the 2026-27 CBSE academic guidelines, these solved papers help students assess their exam readiness and understand official marking schemes.

Solved Previous Year Papers for Science

Access the complete question paper PDF for Class 7 Science below. Regular practice with these targeted exam papers builds familiarity with standard question patterns and helps secure higher marks in final evaluations.

Science
Q.1 Choose the correct answer:
 
(i) The aerobic bacteria can be grown in clarified water
a. filtration
b. sewage
c. aeration
d. sedimentation
 
(ii) The first link in all the food chains are
a. herbivores
b. carnivores
c. green plants
d. none of these
 
(iii) Which of the following inhibits the seepage of rainwater into ground?
a. a pukka floor
b. playground
c. grass lawn
d. forests land
 
(iv) The colour of light which is deviated the least by prism in the spectrum of white light is
a. violet
b. green
c. red
d. yellow
 
(v) The coil of wire contained in heater is known as
a. circuit
b. spring
c. component
d. element
 
Q.2 Match the column:
     Column A          Column B
i.Bread mould      a. excretion
ii. Rose               b. deoxygenated blood
iii. Kidney           c. cutting
iv. Platelets         d. spores
v. Veins              e. blood clotting
 
Q.3 Fill in the blanks:

i.Doctors use ____________ as a device to amplify the sound of heart.
 
ii. Taking in of air rich in O2 inside the body is called ___________.
 
iii. Excessive use of chemical fertilizers make the soil_______________.
 
OR
Turmeric and litmus are ___________ acid-base indicators.
 
iv. All green plants possess_______________ in their leaves.
 
v. Bawri was the traditional way of collecting____________.
 
Q.4 Give one word/one sentence answer for the following:
i.Name the reaction when an acid is mixed with base.
ii. Define parasites.
 
iii. Name the process of seepage of water into ground.
iv. In which form the food synthesized by the plants is stored?
OR
Which part of the plant gets carbon-dioxide from the air for photosynthesis?
v. Name a device used to measure speed of vehicle.
 
Q.5 What is sludge? Explain, how it is treated? 3
 
Q.6 Explain the factors responsible for the depletion of water table. 3
 
Q.7 Draw neat and labelled diagram of-
(a) Reproductive parts of a flower
Or
(b) Human Excretory System
 
Q.8 Write three differences between aerobic and anaerobic respiration. 3
 
Q.9 (i) Name the respiratory organ in cockroaches through which air enters the boy.
(ii) Why do we often sneeze when we inhale a lot of dust-laden air?
 
Q.10 Explain why:
(i) An antacid tablet is taken when you suffer from acidity.
(ii) Calamine solution is applied on the skin when an ant bites.
(iii) Factory waste is neutralised before disposing it into the water bodies.
 
Q.11 The distance between two stations is 450 km. A train takes 5 h to cover this distance. Calculate the speed of the train. 3
 
Q.12 Mention tree causes of water scarcity in our country. 3
 
Q.13 The Eucalyptus trees are planted along sewage ponds. Give reason. 3
 
Q.14 List six products we get from forests. 3
 
Q.15 (i) What type of mirror is used as a side mirror in a scooter? Why is this type of mirror chosen?
(ii) What is difference between mirror and lens?
 
Q.16 Draw diagram of an electric bell
On what principle does an electric bell work?
 
Q.17 (a) What will happen if there are no platelets in the blood?
        (b) What are stomata? Give two functions of stomata.
 
Q.18( a) Which type of mirror can form a real image?
(b) State four characteristics of the image formed by a plane mirror.
(c)Give one use each of a concave and a convex mirror.
 
Q.19 (i) Why should oils and fats be not released in the drain? Explain.
(ii) What is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seas.
Or
Describe the steps involved in getting clarified water from wastewater.
 
Q.20 Observe the circuit and attempt the questions that follow it.
I i) Label the parts (i) and (ii)in the circuit.
I ii) Define (i) given in the circuit?
iii) What is the function of (ii) given in circuit?
1 iv) Name any two effects of electric current?
 
Please click the link below to download CBSE Class 7 Science Question Paper Set Y.

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Understanding Exam Patterns with CBSE Class 7 Science Question Paper Set 25

Review authentic examination papers for Class 7 Science. Working through the CBSE Class 7 Science Question Paper Set 25 allows learners to decode recurring question trends and familiarize themselves with official CBSE evaluation standards.

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Additional Study Resources for Class 7 Science

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FAQs

Where can I download the official PDF for CBSE Class 7 Science Question Paper Set 25?

The CBSE Class 7 Science Question Paper Set 25 is available for download on StudiesToday.com. It includes complete set with all sections so that Class 7 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 7 Science Question Paper Set 25 based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 7 Science Question Paper Set 25 are prepared by subject matter experts as per official marking scheme. Class 7 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 7 Science Question Paper Set 25 help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 7 Science Question Paper Set 25 is important to understand repeat themes and question difficulty levels of Science. It helps Class 7 students to test their time management skills too.

Can I access CBSE Class 7 Science Question Paper Set 25 in different languages?

Yes, where applicable, CBSE Class 7 Science Question Paper Set 25 is available in both English and Hindi mediums. All students from Class 7 can access Science study material in their preferred language.

Is there a charge to download the CBSE Class 7 Science solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 7 Science Question Paper Set 25, are provided free of charge in mobile-friendly PDF.