General Instructions :
- There will be an Annual examination based on entire syllabus
- The annual examination will be of 80 marks and 20 marks weightage shall be for
- Out of 80 marks annual examination, 68 marks weightage shall be for theory and
12 marks weightage shall be for practical based questions.
- For internal assessment
- There will be three periodic tests conducted by the school. Average of the best two tests to be taken that will have a weightage of 10 marks towards the final result.
- Practical / Laboratory work should be done throughout the year and the
student should maintain record of the same. Practical Assessment should be
continuous. There will be weightage of 5 marks towards the final result. All
practicals listed in the syllabus must be completed.
- Regularity, class work and home assignment completion along with neatness
and upkeep of notebook will carry a weightage of 5 marks towards the final
Course Structure Class – X
|Chemical Substances – Nature and Behaviour||
|World of Living||
|Effects of Current||
Note : Above weightage includes the weightage of questions based on practical skills.
Theme : The World of the Living
Unit II : World of Living (50 Periods)
Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport
and excretion in plants and animals.
Control and co-ordination in animals and plants: Topic movements in plants;
Introduction of plant hormones; Control and co-ordination in animals; Nervous
system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal
Reproduction: Reproduction in animals and plants (asexual and sexual)
reproductive health-need and methods of family planning. Safe sex vs HIV / AIDS.
Child bearing and women’s health.
Heredity and Evolution: Heredity; Mendel’s contribution – Laws for inheritance
of traits : Sex determination : brief introduction; Basic concepts of evolution.
Theme : Natural Resources
Unit V : Natural Resources (20 Periods)
Sources of energy: Different forms of energy, conventional and non-conventional
sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy;
Nuclear energy. Renewable versus non-renewable sources of Energy.
Our environment: Eco-system, Environmental problems, Ozone depletion, waste
production and their solutions. Biodegradable and non-biodegradable substances.
Management of natural resources: Conservation and judicious use of natural
resources. Forest and wild life; Coal and Petroleum conservation. Examples of
people’s participation for conservation of natural resources. Big dams: advantages
and limitations; alternatives, if any. Water harvesting. Sustainability of natural
Practicals should be conducted alongside the concepts taught in theory classes.
List of Experiments
- Preparing a temporary mount of a leaf peel to show stomata.
- Experimentally show that carbon dioxide is given out during respiration.
- Studying (a) binary fission in Amoeba, and (b) budding in yeast with the help of
- Identification of the different parts of an embryo of a dicot seed (Pea, gram or red
Science – Textbook for class X – NCERT Publication
Assessment of Practical Skills in Science – Class X – CBSE Publication
Laboratory Manual – Science – Class X, NCERT Publication
Exemplar Problems Class X – NCERT Publication