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Science Class X
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Chemical Reactions and Equations
Writing a Chemical Equation
Balanced Chemical Equations
Types of Chemical Reactions
Double Displacement Reaction
Oxidation and Reduction
Have you observed the effects of Oxidation reaction in everyday life?
Acids, bases and salts
Understanding the chemical properties of Acids and Bases
Acids and Bases in the Laboratory
How do Acids and Bases react with Metals?
How do Metal carbonates and Metal Hydrogencarbonates react with Acids?
How do Acids and Bases react with each other?
Reaction of metallic oxides with Acids
Reaction of non-metallic oxides with Base
What do all Acids and All Bases have in common?
What happens to an Acid or a Base in a water solution?
How strong are Acid or Base solutions?
Importance of pH in everyday life
Are plants and animals pH sensitve?
What is the pH of the soil in your backyard?
pH in our digestive system
pH change as the cause of tooth decay
Self defense by animals and plants through chemical warfare
More about salts
Family of salts
pH of salts
Chemicals from common salt
Common salt - A raw material for chemicals
Uses of Sodium Hydrogencarbonate
Uses of Washing Soda
Are the crystals of salts really dry?
Plaster of Paris
Metals and Non-Metals
Chemical Properties of Metals
What happens when Metals are burnt in air?
What happens when Metals react with Water?
What happens when Metals react with Acids?
How do Metals react with solutions of other metal salts?
The reactivity series
How do metals and non-metals react?
Properties of ionic compounds
Occurence of metals
Extraction of metals
Enrichment of ores
Extracting metals low in the activity series
Extracting metals in the middle of the activity series
Extracting metals towards the top of the activity series
Refining of metals
Prevention of Corrosion
Carbon and it's Compounds
Bonding in carbon - The Covalent Bond
Versatile nature of carbon
Saturated and Unsaturated Compounds
Chains, Branches and Rings
Will you be my friend?
Nomenclature of Carbon Compounds
Chemical Properties of Carbon Compounds
Some important Carbon Compounds - Ethanol and Ethanoic Acid
Properties of Ethanol
Properties of Ethanoic Acid
Soaps and Detergents
Periodic classification of Elements
Making order out of chaos - Early attempts at the classification of elements
Newlands' Law of Octaves
Making order out of chaos - Mendeleev's Periodic Table
Achievements of Mendeleev's Periodic Table
Limitations of Mendeleev's Classification
Making order out of chaos - The modern Periodic Table
Position of elements in the modern Periodic Table
Trends in the modern Periodic Table
Metallic and Non-metallic properties
What are life processes?
How do living things get their food?
How do organisms obtain their nutrition?
Nutrition in Human Beings
Transportation in Human Beings
Our pump - The heart
Oxygen enters the blood in the lungs
The tubes - Blood Vessels
Maintenance by platelets
Transportation in Plants
Transport of water
Transport of food and other substances
Excretion in Human Beings
Excretion in plants
Control and Coordination
Animals - Nervous System
What happens in reflex actions?
How are these tissues protected?
How does the nervous tissue cause action?
Coordination in Plants
Immediate response to stimulus
Movement due to growth
Hormones in Animals
How do Organism Reproduce?
Do organisms create exact copies of themselves?
The importance of variation
Modes of reproduction used by single organisms
Why the sexual mode of reproduction?
Sexual reproduction in flowering plants
Reproduction in Human Beings
Male reproductive system
Female reproductive system
What happens when the egg is not fertilized?
Heredity and Evolution
Accumulation of variation during reproduction
Rules for the inheritance of traits - Mendel's contributions
How do these traits get expressed?
Acquired and inherited traits
Evolution and classification
Tracing evolutionary relations
Evolution by stages
Light - Reflection and Refraction
Reflection of light
Image formation by spherical mirrors
Representation of images formed by spherical mirrors using ray diagrams
Image formation by concave mirror
Uses of concave mirrors
Image formation by convex mirror
Uses of convex mirrors
Sign convention by reflection by spherical mirrors
Mirror forumla and magnification
Refraction of light
Refraction through a rectangular glass slab
The Refractive Index
Refraction by Spherical Lenses
Image formation by lenses
Image formation in lenses using ray diagrams
Sign convention for spherical lenses
Lense formula and magnification
Power of a lens
Human Eye and Colourful World
The Human Eye
Power of accomodation
Defects of Vision and their correction
Refraction of light through a Prism
Dispersion of White light by a glass prism
Twinkling of stars
Advance sunrise and delayed sunset
Scattering of light
Why is the colour of the sky blue?
Colour of the sun at sunrise and sunset
Electric Current and Circuit
Electric Potential and Potential Difference
Factors on which the resistance of a conductor depends
Resistance of a system of resistors
Resistors in series
Resistors in parallel
Heating effect of electric current
Partial applications of heating effect of electric current
Magnetic Effects of Electric Current
Magnetic field and field lines
Magnetic field due to a current-carrying conductor
Magnetic Field due to a current through a straight conductor
Right-Hand Thumb Rule
Magnetic field due to a current through a circular loop
Magnetic field due to a current through a Solenoid
Force on a current carrying-conductor in a magnetic field
Domestic Electric Circuits
Sources of Energy
What is good source of energy?
Conventional sources of energy
Thermal Power Plant
Hydro Power Plant
Improvements in the technology for using conventional sources of energy
Alternative or non-conventional sources of energy
Energy from the sea
Ocean thermal energy
How long will an energy source last us?
What happens when we add our waste to the environment?
Eco-system - What are it's components?
Food chains and webs
How do our activities affect the environment?
Ozone layer and how it is getting depleted?
Managing the garbage we produce
Management of Natural Resources
Why do we need to manage our resources?
Forests and wildlife
Water for all
Coal and Petroleum
An overview of natural resource management
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