CBSE Class 10 Science Sample Paper Solved 2021 Set E

Science
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Read and download the CBSE Class 10 Science Sample Paper Solved 2021 Set E, designed by expert teachers according to the latest 2025-26 curriculum and examination pattern issued by CBSE, NCERT, and KVS. These Class 10 Science sample papers include detailed step-by-step solutions, helping students to practice and evaluate their performance against the most recent marking schemes.

Solved Sample Paper for Class 10 Science PDF

Our Class 10 Science model papers are important for understanding the weightage of different chapters and the difficulty level of expected questions. By solving these guess papers Class 10 students can identify weak areas and improve time management. We also suggest referring to our Class 10 Science Question Papers of previous years to further strengthen your exam preparation.

Class 10 Science Sample Paper with Solutions

SECTION A
 
1. Why reproduction is considered to be an essential phenomenon in organisms? 
 
2. What is Ganga action plan? 
 
SECTION B
 
3. i) What is meant by water harvesting?
 
ii) Write two advantages of storing water in the ground.
 
4. Compare and contrast bio-mass and hydroelectricity as a source of energy
 
                                                               OR
 
What are the four characteristics of a good source of energy?
 
5. State the difference between acquired trait and inherited trait. 
 
SECTION C
 
6. (a) Why tungsten is used in making filament of an electric lamp?
 
b) Calculate which of the given electric appliance uses more energy, a 250 W refrigerator in 1 hr, or a 1200 W toaster in 10 minutes?
 
7. (a) Define absolute refractive index.
 
(b) The speed of light in an unknown medium is measured to be 2.76 x 108 m/s. Speed of light in vacuum is 3 x 108 m/s. What is the refractive index of the medium?
 
8. (a) Draw a neat diagram showing how a magnetic field is produced around a current carrying circular loop.
 
(b) What is the working principle of (i) electric motor (ii) electric generator?
 
                                                                OR
 
(a) Describe Oersted’s experiment with the help of a neat diagram.
 
(b) State the rule which determines the direction of magnetic field thus produced.
 
9. An object is placed at a distance of 15 cm from a convex mirror of focal length 10 cm. Find the position and nature of the image. Also draw the respective ray diagram.
 
10. With reference to electrolytic refining of impure copper, answer the following:
 
i) What is the electrolyte used?
 
ii) Name the anode and cathode.
 
iii) What happens when electric current is passed through the electrolyte?
 
11. A few crystals of FeSO4 are heated in a boiling tube.
 
i) State the colour change that happens during the heating.
 
ii) Name the gases produced during heating.
 
iii) Give the balanced chemical equation for the reaction.
  
                                                             OR
 
i) What are electrovalent compounds? Write two properties of such compounds.
 
ii) Give the electron dot formula of magnesium chloride (MgCl2).
 
12. i) Draw & name the isomers of butane.
 
ii) Write the formula & name of a compound having the functional group:
 
a)▬CHO b) ▬COOH c) ▬CO▬
 
13. The genotype of a pea plant producing violet flower is denoted by VV and that of a pea plant producing white flower is denoted by vv. When are these two crossed?
 
a) What colour of the flower would you expect in the F1 progeny?
 
b) Give the percentage of violet flower plant if F1 plants are self pollinated?
 
c) In what ratio would you find the genotype of VV and Vv in the F2 progeny?
 
14. a) Give any two advantages of vegetative propagation.
 
b) What are sexually transmitted diseases? Give examples for bacterial and viral diseases.
 
                                                            OR
 
a) What are the functions performed by the testis in human beings?
 
b) What is placenta? Write two functions of the same.
 
15. Mention the role of decomposers in an ecosystem. 
 
SECTION D
 
16. (a) Explain why fuse wire is used as a safety device in an electrical circuit.
 
(b) What is the principle behind the working of fuse wire?
 
(c) With the help of a labelled diagram explain the working of a domestic electric circuit.
 
                                                         OR
 
(a) Define electromagnetic induction.
 
(b) Explain with the help of a labelled diagram how current is induced in a secondary coil due
 
to the magnetic field generated in the primary coil.
 
(c) State the rule that shows the direction of induced current.
 
17. (a) How does human eye adjust itself to deal with light of varying intensity?
 
(b) What do you mean by Presbyopia?
 
(c) What are the causes of Presbyopia and how can this defect of vision be corrected?
 
(d) A person having myopic eye uses concave lens of focal length 40cm. What is the power of the lens?
 
18. a) The position of three elements A , B & C in the periodic table are given below.
 
CBSE Class 10 Science Sample Paper Solved 2021 Set E 1
 
i) State whether ‘A’ is a metal or non-metal.
 
ii) State whether ‘C’ is more reactive or less reactive than ‘A’.
 
iii) Will ‘C’ be larger or smaller in size than ‘B’ and why?
 
iv) Which type of ion will be formed by ‘A’?
 
b) Why are group 17 elements called halogens?
 
c) Name three elements with filled outermost shell. Mention their group in the modern periodic table.
 
i) What are amphoteric oxides? Select such oxides amongst the following oxides:
 
Na2O , ZnO , CO2, Al2O3 , K2O
 
ii) List any two chemical properties of acids with balanced equations.
 
iii) Acids cannot be stored in metallic containers. Why?
 
19. i) What do you understand by a homologous series? Explain giving one example of a homologous series.
 
ii) Give one example of a cyclic hydrocarbon with three double bonds & draw its structural formula.
 
iii) Explain the terms : (a) Isomer (b)Functional group
 
20. a) Draw a neat diagram of a typical neuron and label any four parts.b)
 
b) How are brain and spinal cord protected in our body?
 
c) What are synapses?
 
21. a) Give reason for the following
 
(i) Lung alveoli are covered with blood capillaries
 
(ii) Wall of the trachea is supported with cartilaginous rings
 
b) Due to some disease, acid secretion in the stomach is reduced in a man. How will this condition affect his digestion? Identify a secretion involved in digestion which is not an enzyme.
 
c) What is the role of saliva in the digestion of food?
 
                                                         OR
 
a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide in man and label any four parts
 
b) Mention the role of valves in the heart.
 
c) Name the blood vessel that brings oxygenated blood to the heart.
 
SECTION E
 
22. How many times will the equivalent resistance of two identical resistors be increased if the parallel arrangement is changed to series arrangement?
 
                                                         OR
 
How you would connect three resistors, each of resistance 6 Ohm, so that the combination has a resistance of (i) 9 Ω, (ii) 4 Ω
 
23. (a) Draw a neat labelled ray diagram showing the refraction of light through a glass prism.
 
(b) What are the factors on which the angle of deviation depends?
 
24. When a metal ‘X’ is added to a salt solution of a metal ‘Y’ , the following chemical reaction takes place. Metal ‘X’ + Salt solution of ‘Y’ ▬> Salt solution of ‘X’ + metal ‘Y’.
 
i) Mention the inference you draw regarding the activity of metal ‘X’ & ‘Y’
 
ii) Name the type of the reaction.
 
                                                        OR
 
i) List any two observations which you make when add a pinch of sodium hydrogen carbonate to ethanoic acid in a test tube.
 
ii) What is the colour observed when a pH paper is dipped in lemon juice?
 
25. a) Write the types of reactions observed in the following cases.
 
i) Adding water to quick lime.
 
ii) Heating of copper sulphate crystals.
 
iii) Mixing aqueous solutions of barium chloride & sodium sulphate.
 
b) Name the acid present in vinegar solution.
 
26. Describe the mechanism of opening and closing of stomata. 
 
27. Mention the observations of the process of binary fission in Amoeba
 
                                                          OR
 
A student observed a permanent slide showing asexual reproduction in yeast. Draw diagrams of the observation he must have made from the slide. Also name the process.

 

Please click on below link to download CBSE Class 10 Science Sample Paper Solved 2021 Set E

2025
CBSE Class 10 Science 2025 Sample Paper Solved Set 1
CBSE Class 10 Science 2025 Sample Paper Solved Set 10
CBSE Class 10 Science 2025 Sample Paper Solved Set 2
CBSE Class 10 Science 2025 Sample Paper Solved Set 3
CBSE Class 10 Science 2025 Sample Paper Solved Set 4
CBSE Class 10 Science 2025 Sample Paper Solved Set 5
CBSE Class 10 Science 2025 Sample Paper Solved Set 6
CBSE Class 10 Science 2025 Sample Paper Solved Set 7
CBSE Class 10 Science 2025 Sample Paper Solved Set 8
CBSE Class 10 Science 2025 Sample Paper Solved Set 9
CBSE Class 10 Science Boards 2025 Sample Paper Solved
2024
CBSE Class 10 Science Sample Paper 2024
2023
CBSE Class 10 Science Sample Paper 2023
CBSE Class 10 Science Sample Paper 2023 Set A
CBSE Class 10 Science Sample Paper 2023 Set B
2022
CBSE Class 10 Science Sample Paper Solved 2022 Set A
CBSE Class 10 Science Sample Paper Solved 2022 Set B
CBSE Class 10 Science Sample Paper Solved 2022 Set C
CBSE Class 10 Science Term 1 Sample Paper Solved 2022
CBSE Class 10 Science Term 2 Sample Paper Solved 2022 Set A
CBSE Class 10 Science Term 2 Sample Paper Solved 2022 Set B
CBSE Class 10 Science Term 2 Sample Paper Solved 2022 Set C
2021
CBSE Class 10 Science Boards 2021 Sample Paper Solved
CBSE Class 10 Science Sample Paper Solved 2021 Set A
CBSE Class 10 Science Sample Paper Solved 2021 Set B
CBSE Class 10 Science Sample Paper Solved 2021 Set C
CBSE Class 10 Science Sample Paper Solved 2021 Set D
CBSE Class 10 Science Sample Paper Solved 2021 Set E
CBSE Class 10 Science Sample Paper Solved 2021 Term 1 Set A
CBSE Class 10 Science Sample Paper Solved 2021 Term 1 Set B
2020
CBSE Class 10 Science Boards 2020 Sample Paper Solved
CBSE Class 10 Science Sample Paper 2020 Set B
CBSE Class 10 Science Sample Paper 2020 Set C
CBSE Class 10 Science Sample Paper 2020 Set D
CBSE Class 10 Science Sample Paper Solved 2020 Set A
2019
CBSE Class 10 Science Sample Paper 2019 Set A
CBSE Class 10 Science Sample Paper 2019 Set B
CBSE Class 10 Science Sample Paper 2019 Set C
CBSE Class 10 Science Sample Paper 2019 Set D
CBSE Class 10 Science Sample Paper 2019 Set E
CBSE Class 10 Science Sample Paper 2019 Set F
CBSE Class 10 Science Sample Paper 2019 Set G
CBSE Class 10 Science Sample Paper 2019 Set H
CBSE Class 10 Science Sample Paper 2019 Solved
2018
CBSE Class 10 Science Sample Paper 2018 Set A
CBSE Class 10 Science Sample Paper 2018 Set C
CBSE Class 10 Science Sample Paper 2018 Set D
CBSE Class 10 Science Sample Paper 2018 Set E
CBSE Class 10 Science Sample Paper 2018 Set F
CBSE Class 10 Science Sample Paper 2018 Set G
CBSE Class 10 Science Sample Paper 2018 Set H
CBSE Class 10 Science Sample Paper 2018 Set I
CBSE Class 10 Science Sample Paper 2018 Set J
CBSE Class 10 Science Sample Paper 2018 Set K
CBSE Class 10 Science Sample Paper 2018 Set L
CBSE Class 10 Science Sample Paper 2018 Solved Set B
2017
CBSE Class 10 Science Sample Paper 2017 Set A
CBSE Class 10 Science Sample Paper 2017 Set B
CBSE Class 10 Science Sample Paper 2017 Set C
CBSE Class 10 Science Sample Paper 2017 Set D
CBSE Class 10 Science Sample Paper 2017 Set E
CBSE Class 10 Science Sample Paper 2017 Set F
CBSE Class 10 Science Sample Paper 2017 Set G
CBSE Class 10 Science Sample Paper 2017 Set H
CBSE Class 10 Science Sample Paper 2017 Set I
CBSE Class 10 Science Sample Paper 2017 Set J
CBSE Class 10 Science Sample Paper 2017 Set K
CBSE Class 10 Science Sample Paper 2017 Set L
2015
CBSE Class 10 Science Sample Paper 2015 Set A
CBSE Class 10 Science Sample Paper 2015 Set B
CBSE Class 10 Science Sample Paper 2015 Set C
CBSE Class 10 Science Sample Paper 2015 Set D
CBSE Class 10 Science Sample Paper 2015 Set E
CBSE Class 10 Science Sample Paper 2015 Set F
CBSE Class 10 Science Sample Paper 2015 Set G
CBSE Class 10 Science Sample Paper 2015 Set H
CBSE Class 10 Science Sample Paper 2015 Set I
CBSE Class 10 Science Sample Paper 2015 Set J
CBSE Class 10 Science Sample Paper 2015 Set K
CBSE Class 10 Science Sample Paper 2015 Set L
2014
CBSE Class 10 Science Sample Paper 2014 Set A
CBSE Class 10 Science Sample Paper 2014 Set B
CBSE Class 10 Science Sample Paper 2014 Set C
CBSE Class 10 Science Sample Paper 2014 Set D
CBSE Class 10 Science Sample Paper 2014 Set E
CBSE Class 10 Science Sample Paper 2014 Set F
CBSE Class 10 Science Sample Paper 2014 Set G
CBSE Class 10 Science Sample Paper 2014 Set H
CBSE Class 10 Science Sample Paper 2014 Set I
CBSE Class 10 Science Sample Paper 2014 Set J
CBSE Class 10 Science Sample Paper 2014 Set K
CBSE Class 10 Science Sample Paper 2014 Set L
CBSE Class 10 Science Sample Paper 2014 Set M
CBSE Class 10 Science Sample Paper 2014 Set N
2013
CBSE Class 10 Science Sample Paper 2013 Set A
CBSE Class 10 Science Sample Paper 2013 Set B
CBSE Class 10 Science Sample Paper 2013 Set C
CBSE Class 10 Science Sample Paper 2013 Set D
CBSE Class 10 Science Sample Paper 2013 Set E
CBSE Class 10 Science Sample Paper 2013 Set F
CBSE Class 10 Science Sample Paper 2013 Set G
CBSE Class 10 Science Sample Paper 2013 Set H
CBSE Class 10 Science Sample Paper 2013 Set I
CBSE Class 10 Science Sample Paper 2013 Set J
CBSE Class 10 Science Sample Paper 2013 Set K
CBSE Class 10 Science Sample Paper 2013 Set L
2012
CBSE Class 10 Science Sample Paper 2012 Set A
CBSE Class 10 Science Sample Paper 2012 Set B
CBSE Class 10 Science Sample Paper 2012 Set C
CBSE Class 10 Science Sample Paper 2012 Set D
CBSE Class 10 Science Sample Paper 2012 Set E
CBSE Class 10 Science Sample Paper 2012 Set F
CBSE Class 10 Science Sample Paper 2012 Set G
CBSE Class 10 Science Sample Paper 2012 Set H
CBSE Class 10 Science Sample Paper 2012 Set I
* More Sample Papers
CBSE Class 10 Science Chapter Weightage
CBSE Class 10 Science Practical Skills Sample Paper Set A
CBSE Class 10 Science Practical Skills Sample Paper Set B
CBSE Class 10 Science Practical Skills Sample Paper Set C
CBSE Class 10 Science Sample Paper Set A
CBSE Class 10 Science Sample Paper Set B
CBSE Class 10 Science Sample Paper Set C
CBSE Class 10 Science Sample Paper Set D
CBSE Class 10 Science Sample Paper Set E
CBSE Class 10 Science Sample Paper Set F
CBSE Class 10 Science Sample Paper Set G
CBSE Class 10 Science Sample Paper Set H
CBSE Class 10 Science Sample Paper Set I
CBSE Class 10 Science Sample Paper Set J
CBSE Class 10 Science Sample Paper Set K
CBSE Class 10 Science Sample Paper Set L
CBSE Class 10 Science Sample Paper Set M
CBSE Class 10 Science Sample Paper Set N Solved

Important Practice Resources for Class 10 Science

How to download CBSE Class 10 Science Sample Paper Solved 2021 Set E in PDF?

Students can easily download the CBSE Class 10 Science Sample Paper Solved 2021 Set E from our website to prepare for their upcoming examinations. To score high marks, it is important for Class 10 students to understand the exaact pattern as per which teachers design the question papers. We strongly suggest that you practice these latest sample papers for Science and solve different types of questions that are expected to come this year. You can downloadin PDF format so that you can practice offline. We also recommend that Class 10 students solve these papers actual exam conditions at home.

Why should you solve CBSE Class 10 Science Sample Paper Solved 2021 Set E?

Practicing these model papers has several benefits for Class 10 students:

  • New Question Bank: This set has fresh questions for Science which are different from previous years.
  • Exam Pattern Knowledge: Solving more sets will help you to understand the weightage of each chapter in Class 10 and also the type of questions asked.
  • Identify Weak Areas: Comparing your score in each set to find out topics in Class 10 Science for which you need hard work.
  • Speed and Accuracy: Attempting MCQ questions and long-form problems for Class 10 Science makes you faster and better and you will be able to finish your exam on time.

What should you do after solving CBSE Class 10 Science Sample Paper Solved 2021 Set E?

  1. Check Your Work: Match your answers with the solutions given by our teachers in the Science Sample Paper PDF.
  2. Learn from Mistakes: Class 10 students should focus on the questions which you solved incorrectly and understand the error.
  3. Revision: If you find a question difficult you shoul refer to NCERT book for Class 10 Science to understand concepts and then try the question again.
  4. Continuous Practice: Solve multiple sets of Science sample papers from studiestoday.com to build confidence before the CBSE exams.
Where can I download the PDF for CBSE Class 10 Science Sample Paper Solved 2021 Set E?

You can download the complete PDF for CBSE Class 10 Science Sample Paper Solved 2021 Set E for free from StudiesToday.com. Our resources for Class 10 Science are updated for the latest academic session and follow the official exam pattern.

Are solutions provided for CBSE Class 10 Science Sample Paper Solved 2021 Set E?

Yes, CBSE Class 10 Science Sample Paper Solved 2021 Set E comes with detailed, teacher-verified solutions. We have provided step-by-step answers for Science to help students of Class 10 understand correct methodology and marking scheme.

How can practicing CBSE Class 10 Science Sample Paper Solved 2021 Set E help in exam preparation?

Practicing this Science paper helps in time management and identifying important topics. For Class 10, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

Is the CBSE Class 10 Science Sample Paper Solved 2021 Set E accessible on mobile and tablets?

Yes, all our study materials for Class 10 Science are provided in a mobile-friendly PDF format. You can easily download CBSE Class 10 Science Sample Paper Solved 2021 Set E on your mobile device.