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Exam Special

CBSE Class 10 Science 2018 Exam Review and Analysis

With all questions from the syllabus, the CBSE Science exam paper was simple and direct. Find out whether the paper was within your grasp in this blog post.

By Admin 16th Mar, 2018 06:54 pm

After a gap of seven years, CBSE is conducting the Board Exams which is called All India Secondary School Examination (AISSE). And after a good English paper, students appeared for their Science paper today, 16thMarch 2018.There was varied response from both students and teachers.

All the questions, including the numerical, were from the NCERT syllabus. With straightforward questions, the Biology section was the easiest. However, questions from the Chemistry section were slightly tricky. Most students would have been able to easily complete the paper within the three hours duration time.

Here we are decode the CBSE Class 10 Science Paper for 2018, with all its elements and unit-chapter distribution. Let us first see the usual distribution of marks.

Sub-subject Unit-wise Marks Distribution

The marks distribution for Physics, Chemistry and Biology were 26 marks, 25 marks and 29 marks, respectively.

Sub-Subject

Marks

Physics

26

Chemistry

25

Biology

29



The unit-wise weightage was also with a slight difference in 1 and 2 marks each from Physics and Biology, with the ‘Sources of Energy’ chapter being interchangeable.

Unit

Marks

Chemical Substances - Nature and Behaviour

25

World of Living

23

Natural Phenomena

12

Effects of Current

13

Natural Resources

7



Chapter-wise Distribution (Usual v/s 2018 Board Paper)

After looking at the subject/unit-wise distribution of marks, let us now see the chapter-wise distribution of marks in this paper versus the usual distribution.

Chapter

Usual

distribution

2018 Paper Distribution

Chemical Reactions and Equations

5

9

Acids, Bases and Salts

5

3

Metals and Non-metals

5

5

Carbon and its Compounds

3

5

Periodic Classification of Elements

5

5

Life Processes

9

9

Control and Coordination

5

5

How Do Organisms Reproduce?

3

8

Heredity and Evolution

6

1

Light- Reflection and Refraction

7

9

Human Eye and Colourful World

5

5

Electricity

5

10

Magnetic Effects of Electric Current

8

5

Sources of Energy

2

1

Our Environment

5

3

Management of Natural Resources

3



The chapter ‘Electricity’ was the most-valued chapter carrying 10 marks. It was followed by the chapters ‘Chemical Reactions and Equations’, ‘Life Processes’ and ‘Light- Reflection and Refraction’, with a weightage of 8 marks each, whereas the chapters ‘Heredity and Evolution’ and ‘Sources of Energy’ were least valued.

Practical-based questions were picked up from the chapters ‘Chemical Reactions and Equations’, ‘Life Processes’, ‘Light- Reflection and Refraction’ and ‘Electricity’.

Click here  for CBSE Class 10 Science Previous Paper

General Observations

We’ve noted some observations from every aspect of the paper with respect to typology, distribution of marks, difficulty level and, of course and the most scoring areas.

  • The paper was comparatively easy, with Biology being the easiest. 
  • The Chemistry part was moderate with questions mostly from the NCERT Textbook. 
  • The Physics partwas also easy with application-based questions. 
  • Questions from Biology ,for example, ‘What is a dam…’ needed some general awareness from students.
  • There was one HOTS question which carried three marks from Chemistry (Question No. ‘2 ml of sodium hydroxide solution is added to a…’).
  • A 3-marks question of Biology was asked to assess the value inherent in the texts.

Conclusion

Overall, the CBSE Class 10 Science paper was quite good with many questions from the NCERT textbook. Hopefully, students should be able to score really well and pass with flying colours. While the paper was not lengthy, it's okay to be unhappy with this paper only if you didn't get enough time to go through your answers. However, what's not okay is that you continue to worry about this paper instead of getting ready for the next one.

 

 

Also Read 

2018 Board Paper Analysis Hindi CBSE 10 COURSE B

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