CBSE Class 10 Science Sample Paper 2018 Set E

Read and download PDF of CBSE Class 10 Science Sample Paper 2018 Set E 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

Section A

1 Name the process of converting vegetable oil to vegetable ghee.

2 List two secondary sexual characters of males that are different from that of females.

3 Write the main function of Ozone in the upper atmosphere

4 When a concave mirror is placed facing the Sun, the Sun’s rays converge to a point 10 cm from the mirror. Now, if you place a 2 cm long candles flame 20 cm away on the principal axis of the mirror, where would you place a screen to obtain the image of the candle? What would see the size of the image? Draw a ray diagram to justify your answer.

5 If you find coliform bacteria in a sample of water collected from a river, what would you conclude? Give reason for such kind of water pollution.

6 Which natural resources are called the “biodiversity hot spots”? How these hot spots maintain ecological balance?

7 What are isomers? “Isomers of the first three members of alkane series are not possible”. Give reason to justify this statement and draw structures of two isomers of butane, C4H10.

8 An organic compound ‘X’ is a liquid at room temperature. It is also a very good solvent and has the molecular formula C2 H6 O. on oxidation ‘X’ gives ‘Y’ which give, break effervescence on reacting with NaHCO3. X reacts with Y in the presence of conc.H2SO4to give another compound ‘Z’ which has a pleasant smell. Identify X, Y and Z. also write chemical equations to show the formation of Y and Z.

9 An element ‘A’ belongs to 3rd period and 17th group of the periodic table.

a) Write atomic member and electronic configuration of ‘A’

b) State whether A is a metal or a non – metal.

c) Write the nature of bond formed if A reacts with another element B of electronic configuration 2, 8, 1.

d) Write the chemical formula of the compound formed.

10 Consider the following elements

4Be, 9F, 19K, 20Ca

a) Select the element having one election in the outer most shell.

b) Select two elements of the same group.

c) Write the formula and state the nature of the Compound formed when the element K reacts with an element X of electronic configuration 2, 8, 7.

11 Explain with the help of labelled diagrams the development that takes place in each of the body parts of a Planaria where body is cut into three pieces. None this process and give an example of an organism in which a similar process can be observed.

12 List any four methods of contraception used by humans. How does the use of three methods have a direct effect on the heath and prosperity of a family?

13 List two functions each of the following points of human female reproductive system

a) Ovaries

b) Fallopian tubes

c) Uterus

14 “Different species use different strategies to determine sex of a new born individual. It can be environmental cues or genetically determined”. Justify this statement giving reason/example.

15 List in tabular form, two distinguishing features between the acquired traits and the inherited traits with one example of each.

16 A student has to project a three times magnified image of a candle flame on a wall. Name the type of the lens (converging/ diverging) required for the purpose. It the candle flame is at a distance of 6 m from the wall, find the focal length of the lens.

17 A child while playing with his father’s spectacles burnt a hole in a piece of them tissue paper by focusing the image of the Sun on at.

a) Name the defect of vision his father is suffering form.

b) List two causes of the defect.

c) Draw a ray diagram to show how this defect may be corrected using a suitable lens.

18 Some residents of your colony are planning to cut trees to create a place for parking vehicles. You are upset by knowing all this and wanted to do something to create awareness about the importance of trees.

(a) List any three reasons that you will use to convince residents of your colony not to cut the existing trees.

(b) List any three values that would be inculcated amongst them with such approach.

 

Please click the link below to download CBSE Class 10 Science Sample Paper 2018 Set E

Tags: 

 


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

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...

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...

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 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...

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...

×
Studies Today