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CBSE 10th Science 2022-23: Total number of questions, marks distribution

Angana Nath
Angana NathUpdated On: January 13, 2023 04:10 pm IST
Check the detailed exam pattern, marking scheme and syllabus coverage for CBSE 10th Science 2022-23. The students can also check the internal assessment weightage for 10th Science here. 
CBSE 10th Science 2022

CBSE 10th Science 2022-23: Science is one of the major subjects in CBSE Class 10 Exams 2023. As the exam pattern of CBSE exams has been revised, the students are advised to go through the changes thoroughly. Last year, the board exams of CBSE 10th were conducted term-wise, and there will be only one annual exam this year. On this page, the students can check the detailed exam pattern of CBSE 10th Science 2022-23 that includes internal assessment weightage, marks distribution, marking scheme and much more.

Also Read |

CBSE 10th Date Sheet 2023
CBSE 10th Admit Card 2023 Date

CBSE 10th Science 2023 Marks Distribution for Internal Assessment

Internal assessment will be conducted on 20 marks. Go through the marks distribution for internal assessment in the following section-

Internal Assessment


Total Marks

Pen Paper Test and Multiple Assessment (5+5)


20 marks

Lab Practical (Lab activities to be done from the prescribed books)




The candidates can check here the marks distribution for CBSE 10th Science 2023 here in the given table.

Type of Questions

No. of Questions


1 Mark


20 × 1= 20

2 Marks


6 × 2= 12

3 Marks


7× 3= 21

4 Marks


3 × 4= 12

5 Marks


5 × 3 = 15




Internal assessment



CBSE 10th Science Syllabus 2022-23

Check the CBSE 10h Science syllabus and marking scheme here-



Chemical substances-nature and behavior: Chapters 4 and 5


World of living: Chapters 8 and 9


Effects of current: Chapters 12 and 13


Natural resources: Chapter 15


Also Read |

CBSE 10th Sample Papers 2023 with Solutions
CBSE 10th Question Bank 2023 PDF
CBSE 10th Weightage & Blueprint 2023 (For all subjects)

CBSE 10th Science Important Topics 2022-23

Go through the important topics of several chapters here-

Unit Name

Important Topics

Chemical Substances – Nature and Behaviour

  • Carbon and its compound
  • Periodic Classification of elements
  • World of Living
  • Heredity and Evolution Heredity

Effects of Current

  • Electricity Ohm’s law
  • Magnetic effects of current

Natural Resources

  • Our Environment 

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