Constructions
Division of a line segment in a given ratio (internally). Tangents to a circle from a point outside it.
Improvement In Food Resources
Plant and animal breeding and selection for quality improvement and management; Use of fertilizers and manures; Protection from pests and diseases; Organic farming.
Chemical Effects of Electric Current
Do Liquids Conduct Electricity? Chemical Effects Of Electric Current Electroplating
Light
What makes Things Visible Laws of Reflection Regular and Diffused Reflection Reflected Light Can be Reflected Again Multiple Images Sunlight – White or Coloured What is inside Our Eyes? Care of the Eyes Visually Impaired Persons Can Read and Write What is Braille System?
Microorganism Friend Foe
Microorganisms Where do Microorganisms Live Microorganisms and Us Harmful Microorganisms Food Preservation Nitrogen Fixation Nitrogen cycle
Human Eye And Colourful World
Human Eye – Structure and Functioning Power of Accommodation Defects of vision and their correction Refraction of light through a prism Dispersion of light Formation of rainbow Atmospheric Refraction Scattering of Light Applications of scattering of light
Some Applications of Trigonometry
Simple problems on heights and distances. Problems should not involve more than two right triangles. Angles of elevation / depression should be only 30, 45, 60.
Introduction to Trigonometry
Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined). Values (with proofs) of the trigonometric ratios of 30, 45and 60. Relationships between the ratios , Proof and applications of the identity sin2A + cos2A = 1. Only simple identities to be given
Coordinate Geometry
The Cartesian plane, coordinates of a point, names and terms associated with the coordinate plane, notations, plotting points in the plane.
Matter in Our Surroundings
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. Structure of atoms: Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars
Surface Area and Volume
Surface areas and volumes of - Cubes Cuboids Spheres (including hemispheres) Right circular cylinders/cones
Structure Of The Atom
Electrons, protons and neutrons, valency, chemical formula of common compounds. Isotopes and Isobars.
Coordinate Geometry
Concepts of coordinate geometry, graphs of linear equations. Distance formula. Sectio
Pollution Air Water
Air Pollution How does Air Get Polluted? Case Study- The Taj Mahal Greenhouse Effect What can be done? Water Pollution How does Water Get Polluted? What is Potable Water and How is Water Purified? What Can be Done?
Crop Production and Management
Agricultural Practices Basic Practices of Crop Production Preparation of Soil Sowing Adding Manure and Fertilizers Irrigation Protection from Weeds Harvesting Storage Food from Animals