COURSE STRUCTURE
CLASS IX
(Annual Examination)
Marks:80
Unit No. | Unit | Marks |
I | I Matter - Its Nature and Behaviour | 25 |
II | Organization in the Living World | 22 |
III | Motion, Force and Work | 27 |
IV | Food; Food Production | 06 |
Total | 80 | |
Internal assessment | 20 | |
Grand Total | 100 |
Theme: Materials
Unit I: Matter-Nature and Behaviour
Definition of matter; solid, liquid and gas; characteristics – shape, volume, density; change of statemelting (absorption of heat), freezing, evaporation (cooling by evaporation), condensation,
sublimation.
Nature of matter: Elements, compounds and mixtures. Heterogeneous and homogenous mixtures,
colloids and suspensions. Physical and chemical changes (excluding separating the components of
a mixture).
Particle nature and their basic units: Atoms and molecules, Law of Chemical Combination,
Chemical formula of common compounds, Atomic and molecular masses.
Structure of atoms: Electrons, protons and neutrons, Valency, Atomic Number and Mass Number,
Isotopes and Isobars.
Theme: The World of the Living
Unit II: Organization in the Living World
Cell – Basic Unit of life : Cell as a basic unit of life; prokaryotic and eukaryotic cells, multicellular
organisms; cell membrane and cell wall, cell organelles and cell inclusions; chloroplast, mitochondria,
vacuoles, endoplasmic reticulum, Golgi apparatus; nucleus, chromosomes – basic structure, number.
Tissues, Organs, Organ System, Organism:
Structure and functions of animal and plant tissues (only four types of tissues in animals; Meristematic
and Permanent tissues in plants).
Theme: Moving Things, People and Ideas
Unit III: Motion, Force and Work
Motion: Distance and displacement, velocity; uniform and non-uniform motion along a straight line;
acceleration, distance-time and velocity-time graphs for uniform motion and uniformly accelerated
motion, elementary idea of uniform circular motion.
Force and Newton’s laws : Force and Motion, Newton’s Laws of Motion, Action and Reaction forces,
Inertia of a body, Inertia and mass, Momentum, Force and Acceleration.
Gravitation: Gravitation; Universal Law of Gravitation, Force of Gravitation of the earth (gravity),
Acceleration due to Gravity; Mass and Weight; Free fall.
Floatation: Thrust and Pressure. Archimedes’ Principle; Buoyancy.
Work, Energy and Power: Work done by a Force, Energy, power; Kinetic and Potential energy; Law
of conservation of energy (excluding commercial unit of Energy).
Sound: Nature of sound and its propagation in various media, speed of sound, range of hearing in
humans; ultrasound; reflection of sound; echo.
Theme: Food
Unit IV: Food Production
Plant and animal breeding and selection for quality improvement and management; Use of fertilizers
and manures; Protection from pests and diseases; Organic farming.
Note for the Teachers:
1. The chapter Natural Resources (NCERT Chapter 14) will not be assessed in the year-end
examination. However, learners may be assigned to read this chapter and encouraged to
prepare a brief write up on any concept of this chapter in their Portfolio. This may be for
Internal Assessment and credit may be given for Periodic Assessment/Portfolio.
2. The NCERT text books present information in boxes across the book. These help students
to get conceptual clarity. However, the information in these boxes would not be assessed
in the year-end examination.
PRACTICALS
Practicals should be conducted alongside the concepts taught in theory classes.
(LIST OF EXPERIMENTS)
1. Preparation of: Unit-I
a) a true solution of common salt, sugar and alum
b) a suspension of soil, chalk powder and fine sand in water
c) a colloidal solution of starch in water and egg albumin/milk in water and distinguish
between these on the basis of
- transparency
- filtration criterion
- stability
2. Preparation of Unit-I
a) A mixture
b) A compound
using iron filings and sulphur powder and distinguishing between these on the basis of:
(i) appearance, i.e., homogeneity and heterogeneity
(ii) behaviour towards a magnet
(iii) behaviour towards carbon disulphide as a solvent
(iv) effect of heat
3. Perform the following reactions and classify them as physical or chemical changes: Unit-I
a) Iron with copper sulphate solution in water
b) Burning of magnesium ribbon in air
c) Zinc with dilute sulphuric acid
d) Heating of copper sulphate crystals
e) Sodium sulphate with barium chloride in the form of their solutions in water
4. Preparation of stained temporary mounts of (a) onion peel, (b) human cheek cells & to record
observations and draw their labeled diagrams. Unit-II
5. Identification of Parenchyma, Collenchyma and Sclerenchyma tissues in plants, striped,
smoothand cardiac muscle fibers and nerve cells in animals, from prepared slides. Draw their
labeled diagrams. Unit-II
6. Determination of the melting point of ice and the boiling point of water. Unit-I
7. Verificationof the Laws of reflection of sound. Unit-III
8. Determination of the density of solid (denser than water) by using a spring balance and a
measuring cylinder. Unit-III
9. Establishing the relation between the loss in weight of a solid when fully immersed in Unit-III
a) Tap water
b) Strongly salty water with the weight of water displaced by it by taking at least two
differentsolids.
10. Determination of the speed of a pulse propagated through a stretched string/slinky (helical
spring). Unit-III
11. Verification of the law of conservation of mass in a chemical reaction. Unit-III
