MATERIALS: METALS AND NON-METALS Chapter 4 Class VIII C.B.S.E.

INTRODUCTION-In our daily life we come across many objects and materials. These objects are different from each other in appearance and hardness. Those objects which are very hard and have shiny appearance are generally objects made up of metals. Those objects which are not very hard and dull in appearance are made up of non-metals. […]

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LIGHT, SHADOWS AND REFLECTIONS

  LIGHT, SHADOWS AND REFLECTIONS               Chapter 11 Class VI (C.B.S.E./NCERT)                 Key Learning Points-Introduction, Sources of light, Luminous and Non-luminous objects, Transparent, Translucent and Opaque Objects, Straight pathway of Light, Shadow, Differences between shadow and image, A Pinhole Camera, Mirror and Reflection of Light Learning Objectives– At the end

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SYNTHETIC FIBRES AND PLASTICS Chapter 3 Class VIII (C.B.S.E.)

SYNTHETIC FIBRES AND PLASTICS Chapter 3 Class VIII (C.B.S.E.) Key Learning Points– Introduction, Synthetic fibres, Polymers, Characteristics of Synthetic fibres, Types of synthetic fibres and their uses, Plastic, Types of plastics- thermoplastics and thermosetting plastics, Characteristics of synthetic fibres or plastic, Plastic and environment. Plastics Articles INTRODUCTION-The thin thread which is made up of natural

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Egg

COMPONENTS OF FOOD Chapter 2 Class 6 (C.B.S.E.)

Vitamins are essential for the protection of body from diseases. They are required in trace amount. Deficiency diseases are caused due to lack of vitamins. e. g-Anemia, Rickets, Scurvy etc. Vitamins are mainly found in fruits and vegetables. Vitamins are also found in cereals, milk, honey, egg, fish, meat, pulses and sprouts. Vitamins are taken from outside our body but in the sunlight our body can prepare vitamin D.
On the basis of their solubility, there are two types of vitamins-
(i) Fat soluble vitamins- They are easily absorbed by the body fats. e. g.- Vitamin- A, D, E, and K.
(ii) Water soluble vitamins- They dissolve in water. Excess amount of these kinds of vitamins are removed from the body through urine. e. g.- Vitamin B Complex and Vitamin C. 

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