CBSE Class 10 Science Boards 2020 Question Paper Solved Set B

Read and download CBSE Class 10 Science Boards 2020 Question Paper Solved Set B designed as per the latest question paper pattern and Class 10 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 10 Science have been provided with solutions which will help students to assess their performance and find out topics in Science Class 10 which they need to improve to get better marks in Class 10 exams. After solving these last year papers also refer to solved Sample Papers for Class 10 Science available on our website to build strong understanding of the subject

Science Question Paper Class 10

Students can refer to the below Class 10 Science Question Paper designed to help students understand the pattern of questions that will be asked in Class 10 exams. Please download CBSE Class 10 Science Boards 2020 Question Paper Solved Set B

Science Class 10 Question Paper

Section – A
1. Covalent compounds have low melting and boiling point. Why ?
 
2. How many metals are present in second period of periodic table ?
 
3. Answer question numbers 3(a) to 3(d) on the basis of your understanding of the following paragraph and the related studied concepts. Geothermal energy is the energy produced by the heat of molten rocks formed in the deeper hot regions of the earth’s crust. This energy is harnessed to generate electricity. When water is made to flow deep underground in the rocks it returns as steam (or hot water, which is later converted to steam) to drive a turbine on an electric power generator.
In India, exploration and study of geothermal fields started in 1970. The Geological Survey in India has identified 350 geothermal energy locations in the country. The most promising of these is in Puga valley of Ladakh. The estimated potential for geothermal energy in India is about 10000 MW. There are seven geothermal provinces in India namely the Himalayas, Sohna, West coast, Cambay, Son-Narmada-Tapi; Godavari and Mahanadi. Most power stations in India produce Alternating Current (A.C).
 
(a) What are geothermal energy hot-spots ? 
 
(b) Name two countries, other than India, where power plants based on geothermal energy are operational.
 
(c) Name the phenomenon that explains the working of an electric generator.
 
(d) State an important advantage of using AC over DC.
 
4. Answer question numbers 4(a) to 4(d) on the basis of your understanding of the following information and related studied concepts.
 
Thyroid gland is a bilobed structure situated in our neck region. It secretes a hormone called thyroxine. Iodine is necessary for the thyroid gland to make thyroxine. Thyroxine regulates carbohydrate, protein and fat metabolism in the body. It promotes growth of body tissues also. When there is an excess of thyroxine in the body, a person suffers from hyperthyroidism and if this gland is underactive it results in hypothyroidism. Hyperthyroidism is diagnosed by blood tests that measure the levels of thyroxine and Thyroid Stimulating Hormone (TSH).
Hypothyroidism is caused due to the deficiency of iodine in our diet resulting in a disease called goitre. Iodised salt can be included in our diet to control it.
 
(a) Where is thyroid gland situated in our body ? 
 
(b) State the function of thyroxine in human body. 
 
(c) What is hyperthyroidism ? 
 
(d) How can we control hypothyroidism ? 
 
5. Consider the following reasons for the reddish appearance of the sun at the sunrise or the sunset :
 
A. Light from the sun near the horizon passes through thinner layers of air.
 
B. Light from the sun covers larger distance of the earth’s atmosphere before reaching our eyes.
 
C. Near the horizon, most of the blue light and shorter wavelengths are scattered away by the particles.
 
D. Light from the sun near the horizon passes through thicker layers of air.
 
The correct reasons are
 
(a) A and C only
 
(b) B, C and D
 
(c) A and B only
 
(d) C and D only
 
Please click on below link to download CBSE Class 10 Science Boards 2020 Question Paper Solved Set B.
2012
CBSE Class 10 Science Question Paper 2012 (1)
CBSE Class 10 Science Question Paper 2012 (2)
CBSE Class 10 Science Question Paper 2012 (3)
CBSE Class 10 Science Question Paper 2012 (4)
CBSE Class 10 Science Question Paper 2012 (5)
CBSE Class 10 Science Question Paper 2012 (6)
CBSE Class 10 Science Question Paper 2012 (7)
CBSE Class 10 Science Question Paper 2012 (8)
CBSE Class 10 Science Question Paper 2012 (9)
CBSE Class 10 Science Question Paper 2012 (10)
CBSE Class 10 Science Question Paper 2012 (11)
CBSE Class 10 Science Question Paper 2012 (12)
CBSE Class 10 Science Question Paper 2012 (13)
CBSE Class 10 Science Question Paper 2012 (14)
CBSE Class 10 Science Question Paper 2012 (15)
CBSE Class 10 Science Question Paper 2012 (16)
CBSE Class 10 Science Question Paper SA 2 2012 (1)
CBSE Class 10 Science Question Paper SA 2 2012 (2)
CBSE Class 10 Science Question Paper SA 2 2012 (3)
CBSE Class 10 Science Question Paper SA 2 2012 (4)
CBSE Class 10 Science Question Paper SA 2 2012 (5)
CBSE Class 10 Science Question Paper SA 2 2012 (6)
CBSE Class 10 Science Question Paper SA 2 2012 (7)
CBSE Class 10 Science Question Paper SA 2 2012 (8)
CBSE Class 10 Science Question Paper SA 2 2012 (9)
CBSE Class 10 Science Question Paper SA 2 2012 (10)
CBSE Class 10 Science Question Paper SA 2 2012 (11)
CBSE Class 10 Science Question Paper SA 2 2012 (12)
CBSE Class 10 Science Question Paper SA 2 2012 (13)
CBSE Class 10 Science Question Paper SA 2 2012 (14)
CBSE Class 10 Science Question Paper SA 2 2012 (15)
CBSE Class 10 Science Question Paper SA 2 2012 (16)
CBSE Class 10 Science Question Paper SA 2 2012 (17)
CBSE Class 10 Science Question Paper SA1 2012
CBSE Class 10 Science Question Paper SA2 2012 (1)

More Study Material

Previous Year Question Paper Science Class 10

We hope you liked the above provided CBSE Class 10 Science Boards 2020 Question Paper Solved Set B. To get an understanding of the type of questions which were asked in previous year exams, it is important for Class 10 students to refer to CBSE Class 10 Science Boards 2020 Question Paper Solved Set B that we have provided above. Students can download all the Question Papers for Class 10 Science which were issued in the exams so that you can practise them and solve all types of questions which have been asked till now. If you do CBSE Class 10 Science Boards 2020 Question Paper Solved Set B for Class 10 Science you will easily understand the way examination question papers are set by teachers.

Class 10 Science Previous Year Question Papers

The past year question papers CBSE Class 10 Science Boards 2020 Question Paper Solved Set B covers all the topics which have been suggested by CBSE in their Class 10 Science syllabus for the current year. By doing all CBSE Class 10 Science Boards 2020 Question Paper Solved Set B PYP (previous year papers) you will understand the regular questions and MCQ questions for Class 10 Science which are always asked and learn them so that you can get full marks in those questions.

Class 10 Science Model Question Paper Pdf Download

We have provided links above of CBSE Class 10 Science Boards 2020 Question Paper Solved Set B in Pdf format so that you can just click the links and easily download the papers with answers. On studiestoday, we have also provided a download and print option for all CBSE Class 10 Science last year papers and Sample Papers for Class 10 Science to make it more easy for students. You can download CBSE Class 10 Science Previous Year Question Papers and Class 10 Science Sample Papers in PDF absolutely free of cost.

Science Previous Year Question Papers Class 10 with Solutions

We have provided CBSE Class 10 Science Boards 2020 Question Paper Solved Set B with solutions. You will be able to understand the type of answers which you should write in Class 10 Science exams to score good marks. You should attempt all the last year question paper for Class 10 and Class 10 Science MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers. This way you will be able to identify your weak areas and also understand how the teachers of Class 10 Science set their questions in the exams.

CBSE Class 10 Science Previous Year Question Papers with solutions

We have provided the last 10 years Class 10 Science Question Papers. Students who want to practice question papers from all previous years can easily get them on studiestoday. We are the leading website in India from which you can download all the latest Class 10 Science study material for free as per the CBSE syllabus for Class 10 Science for the current academic year.
 

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Can I download the previous year Question Papers of Class 10 Science in Pdf

Yes, you can click on the links above and download Question Papers in PDFs for Class 10 for Science. Click on above link to download CBSE Class 10 Science Boards 2020 Question Paper Solved Set B

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