Together With Science for Class 10. Read Online free Together With Science for Class 10

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Together With Science for Class 10

Unit Details

Theme: Materials

Unit 1: Chemical Substances - Nature and Behavior

Acid, Bases and Salts: General Properties, examples and uses.
Chemical Reactions: Types of Chemical reactions: Combination, Decomposition, Displacement, Double Displacement, Precipitation, Neutralization, Oxidation and Reduction in terms of gain and loss of oxygen and hydrogen.
Metals and Non-metals: Brief discussion of basic metallurgical processes. Properties of common metals. Elementary idea about bonding.
Carbon Compounds: Carbon compounds, elementary idea about bonding. Saturated hydrocarbons, alcohols, carboxylic acids(no preparation, only properties).
Some Important Chemical Compounds: Soap-cleansing action of soap.
\Periodic Classification of Elements: Gradations in properties: Mendeleev's periodic table.

Theme: The World of Living

Unit 2: Our Environment

Our Environment: Environmental problems, their solutions. Biodegradable, non biodegradable, ozone depletion.
Life Processes: "Living" things: Basic concept of nutrition, respiration, transport and excretion in plants and animals.
Control and Co-ordination in Plants and Animals: Trophic movements in plants; Introduction to plant hormones; control and co-ordination in animals: voluntary, involuntary and reflex action, nervous system; chemical co-ordination : animal hormones.
Reproduction: Reproduction in plants and Animals. Need for and methods of family planning. Safe sex vs HIV/AIDS. Child bearing and women's health.
Heredity and Evolution: Heredity; Origin of life: brief introduction; Basic concepts of evolution.

Theme: How Things Work

Unit 3: Effect of Current

Potential, Potential difference, Ohm's Law, Series combination of resistors, parallel combination of resistors; Power dissipation due to current; Inter relation between P, V, I and R.
Magnets: Magnetic field, field lines, field due to a current carrying wire, field due to current carrying coil or solenoid ; force on current carrying conductor, Fleming's left hand rule. Electromagnetic induction. Induced potential difference, Induced current. Direct current. Alternating current, frequency of AC. Advantage of AC over DC. Domestic electric circuits.

Theme: Natural Phenomena

Unit 4: Convergence and divergence of light. Images formed by a concave mirror; related concepts: centre of curvature; principal axis, Optic centre, focus, focal length.

Refraction, laws of refraction
image formed by a convex lens; functioning of a lens in human eye; problems of vision and remedies, Application of spherical mirrors and lenses.
Appreciations of concept of refraction; velocity of light; refractive index; twinkling of stars; dispersion of light. Scattering of light.

Theme: Natural Resources

Unit 5: Conversion of Natural Resources: Management of natural resources. Conversion and judicious use of natural resources. forest and wildlife, coal and petroleum conversion. People's participation. Chipko movement. Legal perspective in conversion and international scenario.