CBSE Class 10 Science Sample Paper Solved 2021 Set A

Read and download PDF of CBSE Class 10 Science Sample Paper Solved 2021 Set A 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 Standard 10 which they need to study more to get better marks in Grade 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

1 What is ‘blob’ known as in Blob on a stick structures of Rhizopus? 
2 Mention any one point of difference between Pepsin and Trypsin. 
3 An element ‘P’ has atomic number 13. What would be its position in the modern periodic table? Write the formula of its oxide.
4 Write any two advantages and any two limitations of harnessing wind energy on a large scale. 
5 How much current will an electric bulb draw from 220 V source if the resistance of the bulb is 1200 ohm? If in place of bulb, when a heater is used the current drawn is 2.2 A. Calculate the resistance of the heater.
6 An object of height 5 cm is placed perpendicular to the principal axis of a concave lens of focal length
10 cm.If the distance of the object from the lens is 20 cm, determine the position and magnification of the image.
7 (i) What is hypermetropia?
(ii) Write the cause of hypermetroipa?
(iii) Draw the ray diagram showing how hypermetropia is corrected?
8 a) Do basic solutions also have H+ (aq) ions? Then why are these basic?
b) Which of the given salts have pH more than 7?
i) washing soda ii) copper sulphate iii) sodium acetate iv) ammonium chloride
c) A dry pellet of a common base reacts with HCl to form salt and water. Define the type of reaction involved.
9 a) State Modern Periodic law.
b) Why did Mendeleev leave gaps in his periodic table?
c) Two elements ‘C’ and ‘D’ belong to group 17 and group 16 respectively. Which has smaller atomic size? Why?
10 Plants absorb water from the soil. Root hairs help in this process.
a) Name the structural components which help in the transport of water upwards.
b) Explain the process and forces which help in the transport of water in tall trees from the roots to the tree tops.
i) In human excretory system
a) Which part(s) produces urine.
b) Where is urine stored?
ii) Name the factors on which the amount of water reabsorbed along the tubular part of nephron depend on?
iii) On what principle, artificial kidney is working?
11 Name the hormone secreted by a) Thyroid gland b) Pancreas c) ovary and also state one function of each.
12 Name the device that converts electrical energy into mechanical energy. Draw the labeled diagram and explain the principle involved in this device.
(i) How is an ammeter connected in an electric circuit? Give reason.
(ii) List out advantages of parallel combination of appliances over series combination in domestic circuit.

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



Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Moderation of Marks Class 11 and 12 Board Exams

The portal for moderation and finalization of results for Class-12 is being opened from 16.07.2021 to 22.07.2021. As Board has to declare the result latest by 31.07.2021, schools have been requested to follow the schedule strictly and complete the moderation within...

CBSE Class 12 Evaluation Criteria 2021

SUMMARY OF THE POLICY FOR TABULATION OF MARKS FOR CLASS XII BOARD EXAMINATIONS 2021   1(a) Due to cancellation of the Board examinations, the assessment of theory portion of 80/70/60/50/30 marks will be done by the school based on the following:     Class...

FAQs on Policy for Tabulation of Marks for Class 10 Board Exams

ON POLICY Question.1 How CBSE will declare the result of Class-X? Answer. Results of Class X Board will be declared on the basis of an objective criterion developed by the Board vide Notification no.CBSE/CE/2021 dated 01.05.2021. Question.2. If any candidate is not...

CBSE asks schools to load Class 12 Internal Assessment Marks

This has a reference to the letter no CBSE/COORD/2021 dated 11.02.2021 regarding conduct of the School-Based Assessment (Internal Assessment/Practical/ Project) of Class-XII and uploading the marks by 11.06.2021. It has been observed that some schools have not been...

CBSE Board Examination Scheme of Assessment 2021 2022

A. Academic session to be divided into 2 Terms with approximately 50% syllabus in each term: The syllabus for the Academic session 2021-22 will be divided into 2 terms by following a systematic approach by looking into the interconnectivity of concepts and topics by...

Studies Today