• The CBSE board science syllabus for class 10 has been designed keeping in mind the following broad themes-: Materials, The World of the Living, Moving Things, People and Ideas, Natural Resources: Balance in nature, and Food.
• The syllabus is divided into five units, with units one and two having higher weightage.
• The domains of Physics, Chemistry and Biology have begun to emerge in the latest CBSE syllabus for class 10 science. 
• The aim is to expose students to practical knowledge and involve quantitative measurements.

The CBSE syllabus for class 10 science 2022-23 has five units- Chemical substances-nature and behaviour, World of living, Natural phenomena, Effects of current and Natural resources. Check the unit-wise marking scheme given below in the table:

Theme: Materials

Unit 1: Chemical Substances – Nature and Behavior

1. Chemical reactions
2. Acids, bases and salts
3. Metals and nonmetals

Theme: The World of the Living

Unit II: World of Living

1. Life processes
2. Control and coordination in animals
3. Reproduction
4. Heredity and Evolution

Theme: Natural Phenomena

Unit III: Natural Phenomena

1. Reflection
2. Refraction
3. Functioning of a lens in the human eye

Theme: How Things Work

Unit IV: Effects of Current

1. Electric current
2. Magnetic effects of current 

Theme: Natural Resources

Unit V: Natural Resources

1. Our environment

The CBSE board science syllabus for class 10 covers the following assessment areas.

The CBSE class 10 Science syllabus for class 10 covers the following internal assessment areas.

1. 1. Find the pH of the following by using pH paper/universal indicator:
      • Dil. Hydrochloric Acid
      • Dil. Ethanoic Acid solution
      • Dil. NaOH solution
      • Lemon juice
      • Water
      • Dil. Hydrogen Carbonate solution
   2. Examining the properties of acids and bases based on their reaction:
      • Litmus solution (Blue/Red)
      • Solid sodium carbonate
      • Zinc metal
2. Conducting and observing the reactions and categorizing them:
   • Combination
   • Decomposition
   • Displacement
   • Double displacement
     • The action of water on quicklime
     • Iron nails in copper sulphate solution
     • The action of heat on ferrous sulphate crystals
     • The reaction between sodium sulphate and barium chloride solutions
3. Observing the action of metals on the salt solutions:
   • ZnSO4(aq)
   • FeSO4(aq)
   • CuSO4(aq)
   • Al2 (SO4)3(aq)
   • Placing in the decreasing order of reactivity depending on the result.
4. Examining the reliance of potential difference (V) across a resistor on the current (I) passing through it and determining its resistance. Also, devising a graph between V and I.
5. Determination of the equal resistance of two resistors when connected in parallel and series.
6. Making a temporary mount of a leaf peel to display stomata.
7. Show that carbon dioxide is released during respiration.
8. Study of the properties of acetic acid:
   • Odor
   • Solubility in water
   • Effect on litmus
   • Reaction with Sodium Hydrogen Carbonate
9. Comparative cleaning capacity of soap in soft and hard water.
10. Determination of the focal length:
    • Concave mirror
    • Convex lens
    • By getting the image of a distant object.
11. Illustrating the path of a ray of light passing through a rectangular glass slab for angles of incidence. Calculate the angle of incidence, refraction and emergence and analyse the derivative.
12. Study
    • Binary fission in Amoeba
    • Budding in yeast and Hydra with the prepared slides.
13. Tracing the course of the rays of light through a glass prism.
14. Identifying the embryo parts of a dicot seed.

CBSE syllabus for class 10 science 2022-2023 has been released on the board’s website cbse.nic.in. 

Follow these steps to download the CBSE syllabus for class 10 science from the official website:

• Step 1: Navigate to the CBSE official website.
• Step 2: The webpage opens. Click on the tab “Curriculum for the Academic Year 2022-23”.
• Step 3: Choose the Secondary Curriculum option(IX-X))
• Step 4: The CBSE syllabus for the class of all subjects will be displayed sequentially on the screen. Click on the Main Subjects – (Group-A1) option, then click on the science link to download the cbse syllabus for class 10 science.

1. What is the marking scheme for the theory papers in the CBSE board science syllabus for class 10 2023?
   The theory paper holds 80 marks, and the practical examination carries 20 marks.
2. Will CBSE follow a single exam format?
   
   Yes, CBSE has announced that from session 2022-23, CBSE will a follow single exam format.
3. What is the CBSE syllabus for class 10 science 2022-23?
   
   The CBSE Class 10 Science Syllabus 2023 is briefly above. The CBSE Class 10 Science Syllabus 2023 has five units
   • Chemical Substances-Nature and Behavior
   • World of Living
   • Natural Phenomena
   • Effects of Current and
   • Natural Resources