7th chemistry-cbse

7th Chemistry-CBSE

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  • Description
Pebbles presents “CBSE 7th Std Chemistry”, an audio visual educational help tool to the students to 
understand the complex subject matter easily. The DVD limelights spectacular animations on various 
details and Biological concepts covering multifaceted aspects of the latest educational trends backed 
by commanding voice over by media professionals. The animated explanation have an intrinsic 
approach captivating the young minds effortlessly. A must on hand for the young and aspiring
students, the DVD covers the following: 

Material of Daily Use - Types of Animal Fibers, Processing of wool, Silk, Method used in silk farming, 
Fur, Natural fibre and artificial fibre, Plant & Animal Fibre, Temperature, Heat as a form of energy, 
Thermometer, Mercury, Making of a Thermometer, The Celsius Scale, The Fahrenheit Scale, 
Transfer of Heat, Conduction of Heat, Good and Bad Heat of Conductor, Heat Conduction Through air, 
Convection Currents in Water, Some application of Convection Current, Land sea Breeze,
Oceanic Currents, Absorption of Radiation by a Body, Some application of Radiation, 
Corrosion of metals, Effects of Corrosion, Methods of Preventing of corrosion, 
Reactivity series of metals, Radiation, Sea water is salty, Crystallization 

Structures of Matter - Properties of States of Matter, Properties of Solid, Liquid, Gases,
Difference between solid, liquid & gases, Arrangement of Molecules, Elements, Interchangeability, 
Compounds, Elements of Compounds, Mixtures, Difference between Compounds and Mixtures
Symbol of Elements, Symbol Derived, Symbol from Latin, Significance of the Symbols of an Elements

Heat and Temperature - Thermal Expansion of Solids, Expansion of Bi-Metallic Strip, 
Uses of Thermal Expansion of Solids, In the Railway Track, In Bridges, Expansion of Gases in 
Telephone & Electric Wire, To avoid Cracking of Glass Ware, Expansion of Gases, Thermos flask 

Acids ,Bases and Salts - Indicators, Colors of Indicators, Acids, General properties of Acids, 
Action of Hcl on caco3, Basicity of acids, Uses of acids, Bases, Composition of bases, 
General properties of bases, Bases with Indicator, Acidity of Bases, Uses of bases, 
Neutralization, Uses of Salts