10th STD CBSE SCIENCE SYLLABUS 21-22

SCIENCE

(SUBJECT CODE – 086)

SYLLABUS FOR PURPOSE OF EXAMINATION 2021-22

CLASS – X

The subject of Science plays an important role in developing well-defined abilities in cognitive, affective and psychomotor domains in children. It augments the spirit of enquiry, creativity, objectivity and aesthetic sensibility. Upper primary stage demands that a number of opportunities should be provided to the students to engage them with the processes of Science like observing, hypothesizing, experimenting recording observations, drawing, tabulation, plotting graphs, analyze and drive conclusions etc., whereas the secondary stage also expects abstraction and quantitative reasoning to occupy a more central place in the teaching and learning of Science. Thus, the idea of atoms and molecules being the building blocks of matter makes its appearance, as does Newton’s law of gravitation. The present syllabus has been designed around seven broad themes viz. Food; Materials; The World of the Living; How Things Work; Moving Things, People and Ideas; Natural Phenomenon and Natural Resources. Special care has been taken to avoid the temptation of adding too many concepts than can be comfortably learnt in the given time frame. No attempt has been made to be comprehensive. At this stage, while science is still a common subject, the disciplines of Physics, Chemistry and Biology begin to emerge. The students should be exposed to experiences based on hands – on activities as well as modes of reasoning that are typical of the subject.

 

GENERAL INSTRUCTIONS:

  1. The total Theory Examinations (Term I+II) will be of 80 marks and 20 marks weightage shall be for Internal Assessment (Term I+II).
  2. Internal Assessment – Maximum Marks 10 for each Term:
  • There will be Periodic Assessment that would include:
  • Three periodic tests will be conducted by the school in the entire session. Average of the two periodic tests/marks of best periodic Test conducted in the Term is to be taken for consideration.
  • Diverse methods of assessment as per the need of the class dynamics and curriculum transaction. These may include – short tests, oral test, quiz, concept maps, projects, posters, presentations, enquiry based scientific investigations etc.
  • . Subject Enrichment in the form of Practical/Laboratory work should be done throughout the year and the student should maintain record of the same. Practical Assessment should be Page 2 of 10 continuous. All practical listed in the syllabus must be completed.
  • Portfolio to be prepared by the student- This would include classwork and other sample of student work.

    COURSE STRUCTURE

  CLASS X

EVALUATION SCHEME

THEORY
UNITS TERM – I MARKS
I Chemical Substances-Nature and Behaviour: Chapter 1,2 and 3 16
II World of Living: Chapter 6 10
III Natural Phenomena: Chapter 10 and 11 14
UNITS TERM – II MARKS
I Chemical Substances-Nature and Behaviour: Chapter 4 and 5 10
II World of Living: Chapter 8 and 9 13
IV Effects of Current: Chapter 12 and 13 12
V Natural Resources: Chapter 15 05
TOTAL THEORY (TERM I+II) 80
INTERNAL ASSESSMENT: TERM I 10
INTERNAL ASSESSMENT: TERM II 10
GRAND TOTAL 100

 

TERM – I

 

THEME: MATERIALS

UNIT I: CHEMICAL SUBSTANCES – NATURE AND BEHAVIOUR

CHAPTER -1 CHEMICAL REACTIONS AND EQUATIONS

CHEMICAL REACTIONS:

Chemical equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, neutralization, oxidation and reduction.

CHAPTER – 2 ACIDS, BASES AND SALTS

ACIDS, BASES AND SALTS:

 Their definitions in terms of furnishing of H+ and OH- ions, General properties, examples and uses, concept of pH scale (Definition relating to logarithm not required), importance of pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris.

CHAPTER – 3 METALS AND NON – METALS

METALS AND NONMETALS: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds. Page 7 of 10

 THEME: THE WORLD OF THE LIVING

UNIT II: WORLD OF LIVING

CHAPTER – 6 LIFE PROCESSES

LIFE PROCESSES: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants and animals.

THEME: HOW THINGS WORK

UNIT III: NATURAL PHENOMENA

CHAPTER – 10 LIGHT – REFLECTION AND REFRACTION

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature, principal axis, principal focus, focal length, mirror formula (Derivation not required), magnification.

Refraction; Laws of refraction, refractive index.

Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula (Derivation not required); Magnification. Power of a lens.

CHAPTER – 11 HUMAN EYE AND COLOURFUL WORLD

Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life.

TERM – II

THEME: MATERIALS

UNIT I: CHEMICAL SUBSTANCES – NATURE AND BEHAVIOUR

CHAPTER – 4 CARBON AND ITS COMPOUNDS

CARBON COMPOUNDS: Covalent bonding in carbon compounds. Versatile nature of carbon.Homologous series.

CHAPTER – 5 PERIODIC CLASSIFICATION OF ELEMENTS

PERIODIC CLASSIFICATION OF ELEMENTS: Need for classification, early attempts at classification of elements (Dobereiner’s Triads, Newland’s Law of Octaves, Mendeleev’s Periodic Table), Modern periodic table, gradation in properties, valency, atomic number, metallic and non-metallic properties.

THEME: THE WORLD OF THE LIVING

UNIT II: WORLD OF LIVING

CHAPTER – 8 HOW DO ORGANISMS REPRODUCE?

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.

CHAPTER – 9 HEREDITY AND EVOLUTION

HEREDITY: Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex determination: brief introduction; Page 8 of 10

THEME: NATURAL PHENOMENA

UNIT IV: EFFECTS OF CURRENT

CHAPTER – 12 ELECTRICITY

Ohm’s law; Resistance, Resistivity, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors and its applications in daily life. Heating effect of electric current and its applications in daily life. Electric power, Interrelation between P, V, I and R.

CHAPTER – 13 MAGNETIC EFFECTS OF CURRENT

MAGNETIC EFFECTS OF CURRENT: Magnetic field, field lines, field due to a current carrying conductor, field due to current carrying coil or solenoid; Force on current carrying conductor, Fleming’s Left Hand Rule, Electric Motor, Electromagnetic induction. Induced potential difference, Induced current. Fleming’s Right Hand Rule.

THEME: NATURAL RESOURCES

UNIT V: NATURAL RESOURCES

CHAPTER – 15 OUR ENVIRONMENT

OUR ENVIRONMENT: Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable substances.