|I||Matter - Its Nature and Behaviour||23|
|II||Organisation in the Living World||20|
|III||Motion, Force and Work 2||27|
|V||Food; Food Production||4|
Note : Above weightage includes the weightage of questions based on practical skills.
Theme : Materials
Unit I : Matter-Nature and Behaviour
Definition of matter; solid, liquid and gas; characteristics - shape, volume, density; change of state-melting (absorption of heat), freezing, evaporation (cooling by evaporation), condensation, sublimation.
Nature of matter : Elements, compounds and mixtures. Heterogeneous and homogenous mixtures, colloids and suspensions.
Particle nature, basic units : Atoms and molecules, Law of constant proportions, Atomic and molecular masses. Mole concept : Relationship of mole to mass of the particles and numbers.
Structure of atoms : Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.
Theme : The World of the Living
Unit II : Organization in the Living World
Call - 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 Permanenttissues in plants).
Biological Diversity : Diversity of plants and animals - basic issues in scientific naming, basis of classification. Hierarchy of categories / groups, Major groups of plants (salient features) (Bacteria, Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms). Major groups of animals (salient features) (Nonchordates upto phyla and chordates upto classes).
Health and Diseases : Health and its failure. Infectious and Non-infectious diseases,their causes and manifestation. Diseases caused by microbes (Virus, Bacteria and Protozoans) and their prevention; Principles of treatment and prevention. Pulse Polio programmes.
Theme : Moving Things, People and Ideas
Unit III : Motion, Force and Work
Motion : Distance and displacement, velocity; uniform and non-uniform motion along a staight line; acceleration, distance-time and velocity-time graphs for
uniform motion and uniformly accelerated motion, derivation of equations of motion by graphical method; 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. Elementary idea of conservation of Momentum.
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; Elementary Idea of Relative Density.
Work, energy and power : Work done by a Force, Energy, Power; Kinetic and Potential energy; Law of conservation 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 and SONAR.
Structure of the Human Ear (Auditory aspect only).
Theme : Natural Resources : Balance in Nature
Unit IV : Our Environment
Physical resources : Air, Water, Soil. Air for respiration, for combustion, for moderating temperatures; movements of air and its role in bringing rains across India. Air, Water and Soil pollution (brief introduction). Holes in ozone layer and the probable damages.
Bio-geo chemical cycles in nature : Water, Oxygen, Carbon and Nitrogen
Theme : Food
Unit V : 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.
Praticals should be conducted alongside the concepts taught in theory classes.
LIST OF EXPERIMENTS
- Finding the pH of the following samples by using pH paper / universal indicator:
- Dilute Hydrochloric Acid
- Dilute NaOH solution
- Dilute Ethanoic Acid Solution
- Lemon juice
- Dilute Hydrogen Carbonate solution
Studying the properties of acids and bases (HCl & NaOH) by their reaction with:
a) Litmus solution (Blue/Red)
b) Zinc metal
c) Solid sodium carbonate
- Performing and observing the following reactions and classifying them into :
a) Combination reaction
b) Decomposition reaction
c) Displacement reaction
d) Double displacement reaction
- Action of water on quick lime
- Action of heat on ferrous sulphate crystals
- Iron nails kept in copper sulphate solution
- Reaction between sodium sulphate and barium chloride solutions
- Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions :
- ZnSO4 (aq)
- FeSO4 (aq)
- CuSO4 (aq)
- Al2 (SO4)3 (aq)
Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the above result.
- Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance. Also plotting a graph between V and I.
- Determination of the equivalent resistance of two resistors when connected in series and parallel.
- Preparing a temporary mount of a leaf peel to show stomata.
- Experimentally show that carbon dioxide is given out during respiration.
- Study of the following properties of acetic acid (ethanoic acid) :
- solubility in water
- effect on litmus
- reaction with sodium Hydrogen Carbonate
- Study of the comparative cleaning capacity of a sample of soap in soft and hard water.
- Determination of the focal length of :
- Concave mirror
- Convex lens
by obtaining the image of a distant object.
- Tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.
- Studying (a) binary fission in Amoeba, and (b) budding in yeast with the help of prepared slides.
- Tracing the path of the rays of light through a glass prism.
- Finding the image distance for varying object distances in case of a convex lens and drawing corresponding ray diagrams to show the nature of image formed.
- Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).
● Science - Textbook for class X - NCERT Publication
● Assessment of Practical Skills in Science - Class IX - CBSE Publication
● Assessment of Practical Skills in Science - Class X - CBSE Publication
● Laboratory Manual - Science - Class IX, NCERT Publication
● Laboratory Manual - Science - Class X, NCERT Publication
● Exemplar Problems - Clss IX - NCERT Publication
● Exemplar Problems Class X - NCERT Publication