CBSE Class 10 Science Boards 2020 Sample Paper Solved

Read and download PDF of CBSE Class 10 Science Boards 2020 Sample Paper Solved designed as per the latest curriculum and examination pattern for Class 10 issued by CBSE, NCERT and KVS. The latest Class 10 Science Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Science Class 10 which they need to study more to get better marks in Class 10 exams. After solving these guess papers also refer to solved Class 10 Science Question Papers available on our website to build strong understanding of the subject

Sample Paper for Class 10 Science Pdf

Students can refer to the below Class 10 Science Sample 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 Sample Paper Solved

Science Class 10 Sample Paper

CBSE Class 10 Science Boards 2020 Sample Paper Solved. CBSE has recently released the sample papers for class 10 for subject Science. These papers are released every year by CBSE so that the students can understand the pattern of question paper which is expected to come in the Class 10 board exams. Students can refer to the attached question paper along with marking scheme to understand what they can expect in the board exams in 2020. Its always better to solve the question paper first and then refer to provided answers.

SECTION A
1 Define catenation. 
 
2 How does valency of an element vary across a period? 
 
3 Answer question numbers 3(a) - 3(d) on the basis of your understanding of the following paragraph and the related studied concepts.
Renewable energy sources such as wind energy are vital for the Indian economy, not only from the point of view of supply, but also from the perspective of environmental and social benefits. India is the world’s fifth largest wind-power producer and the largest windmill facilities in India are installed in Tamil Nadu. Muppandal is a small village of Tamil Nadu and one of the most important sites of wind-farm in the state. It uses wind from the Arabian Sea to produce renewable energy. The suitability of Muppandal as a site for wind farms stems from its geographical
location as it has access to the seasonal monsoon winds.
 
CBSE Class 10 Science Boards 2020 Sample Paper Solved
 
The electrical generators used on wind turbines in sites like Muppandal, produce an output AC of 240 V and a frequency of 50 Hz even when the wind speed is fluctuating. A transformer may be required to increase or decrease the voltage so it is compatible with the end usage, distribution or transmission voltage, depending on the type of interconnection.
transformer may be required to increase or decrease the voltage so it is compatible with the end usage, distribution or transmission voltage, depending on the type of interconnection.
 
3(a) State the principle behind electric generator. 
 
3(b) The output frequency of wind turbine is 50 Hz. What is meant by this statement? 
 
3(c) Why do you think Muppandal is at an advantageous position for this project?
 
4(a) Refer to Table B showing the blood report of the levels of glucose of patients X and Y.
Infer the disease which can be diagnosed from the given data.
 
4(b) Identify the hormone whose level in the blood is responsible for the above disease. 
 
4(c) Which one of the following diets would you recommended to the affected patient?
i) High sugar and low fat diet.
ii) Low sugar and high protein diet.
iii) High Fat and low fiber diet.
iv) Low sugar and high fiber diet.
 
4(d) Refer to the Table A and suggest the value of the mean blood glucose level beyond which doctor’s advice is necessary:
i) 180 mg/dL
ii) 115 mg/dL
iii) 50 mg/dL
iv) 80 mg/dL
 
5 When we enter a dark room coming from outside, immediately the things inside the room do not appear clear to our eyes. This is because
i) pupils do not open at all in the dark.
ii) pupils take time to adjust.
iii) light travels slower in a dark room.
iv) pupils open very quickly in the dark.
OR
The phenomena of light responsible for the working of the human eye is
i) reflection
ii) refraction
iii) power of accommodation
iv) persistence of vision
 
When a 4V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. The value of the resistance of the resister is:
i) 4 Ω
ii) 40 Ω
iii) 400 Ω
iv) 0.4 Ω
 
7 Unit of electric power may also be expressed as:
i) volt-ampere
ii) kilowatt-hour
iii) watt-second
iv) joule-second
 
8 It was found that water from a river was contaminated with Coliform bacteria. Which one of the following pollutant might have got mixed with the water?
i) Fertilizer run off
ii) Industrial waste
iii) Pesticides
iv) Human faecal matter
OR
Which one of the following stakeholders of forests causes the maximum damage to forest?
i) People who live in or around the forest
ii) The forest department of the government
iii) The wildlife and native enthusiasts
iv) The industrialists
 
9 Which one of the following green house gases is a contributor due to incomplete combustion of coal and petroleum?
i) Oxides of nitrogen
ii) Methane
iii) Carbon monoxide
iv) Carbon dioxide
 
10 Which of the following reactions is an endothermic reaction?
i) Burning of coal.
ii) Decomposition of vegetable matter into compost.
iii) Process of respiration.
iv) Decomposition of calcium carbonate to form quick lime and carbon dioxide.

 

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Sample Paper Science Class 10

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

Class 10 Science Sample Paper

The latest Sample Paper CBSE Class 10 Science Boards 2020 Sample Paper Solved covers all the topics which have been suggested by CBSE in their Class 10 Science syllabus for the current year. By doing CBSE Class 10 Science Boards 2020 Sample Paper Solved 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.

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Science Sample Paper Class 10 with Solutions

We have provided CBSE Class 10 Science Boards 2020 Sample Paper Solved 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 Sample Paper with solutions

We have provided the current year Class 10 Science Sample Paper. Students who want to practice Sample Paper 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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