CBSE Class 10 Science Question Paper 2020 Set 03 Solved

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Previous Year Question Papers for Class 10 Science

Explore authentic exam materials through the CBSE Class 10 Science Question Paper 2020 Set 03 Solved. Tailored for Class 10 learners, utilizing these Science previous year papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

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SECTION A
 
1 Name the ‘blob’ that develops at the tip of the sporagiophore in Rhizopus. 
 
2 Why the inner wall of stomach is not digested although the digestive enzyme can digest it? 
 
3 State what happens when zinc granules are heated with sodium hydroxide. Write balanced chemical equation and the name of main product formed.
 
4 An object is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Calculate the position and nature of the image formed.
 
5 List two reasons which limit the usage of solar cells for harnessing energy for domestic use? 
 
6 What is short circuiting of an electric circuit? An electric motor of 1.5 KW power rating is operated in a domestic electric circuit of current rating 5A.What would happen when it is switched ON? Give reason for your answer.
                                                OR
A coil of insulated copper wire is connected to a galvanometer. What would happen If a bar magnet is
 
(i) Pushed into the coil
(ii) Withdrawn from inside the coil?
(iii) Held stationary inside the coil?
 
7 a) Derive an expression for Joule’s law of heating.
 
b) Give two examples for applications of heating effect of electric current.
 
8 You were standing on the road side ,then you saw a family travelling in a car .An ambullance carrying a patient for dialysis was travelling behind the car. The driver of the car brought his car to one side of the road and allowed the ambullance to over take.
 
a)What is dialysis?
 
b)What is the principle behind dialysis?
 
c)What value was shown by the driver?
 
9 a) How does the tendency to lose electron change as you go
 
i. From left to right across a period?
 
ii. Down a group?
 
b) State modern periodic law.
                                  OR
Differentiate between Modern periodic table and Mendeleev’s periodic table.
 
10 a)Label the parts A,B,C and D
 
b)Write the functions of the parts labelled as A,B and D
CBSE Class 10 Science Question Paper Solved 2020 Set C
 
11 How do Mendel’s experiments show that traits may be dominant or recessive?
                                  OR
What is reflex action and give one example?Name the part of nervous system that controls this action.
 
12 The image of an object formed by a lens is of magnification -1. If the distance between the object and image is 60 cm, what is the focal length of the lens? If the object is moved 20 cm towards the lens, where would the image be formed? State reason and also draw a ray diagram in support of your answer.
 
13 a) What factors could lead to speciation?
 
b) What are homologous organs? Give one example.

 

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Past Exam Papers & Solutions for Class 10 Science

Class 10 Science Past Exam Papers & Resources

Access structured past examination sets for Class 10 Science. Solving the CBSE Class 10 Science Question Paper 2020 Set 03 Solved provided above helps students understand actual exam difficulty levels, question formats, and topic distributions for both descriptive and objective sections.

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FAQs

Where can I download the official PDF for CBSE Class 10 Science Question Paper 2020 Set 03 Solved?

The CBSE Class 10 Science Question Paper 2020 Set 03 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 10 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 10 Science Question Paper 2020 Set 03 Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 10 Science Question Paper 2020 Set 03 Solved are prepared by subject matter experts as per official marking scheme. Class 10 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 10 Science Question Paper 2020 Set 03 Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 10 Science Question Paper 2020 Set 03 Solved is important to understand repeat themes and question difficulty levels of Science. It helps Class 10 students to test their time management skills too.

Can I access CBSE Class 10 Science Question Paper 2020 Set 03 Solved in different languages?

Yes, where applicable, CBSE Class 10 Science Question Paper 2020 Set 03 Solved is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.

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No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Question Paper 2020 Set 03 Solved, are provided free of charge in mobile-friendly PDF.