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SOUND | SPEED NOTES | SCIENCE | CBSE | CLASS 9
Chapter – 13 Sound Sound: Vibrations that travel through the airor another medium and can be heard when they reach a person's or animal's...
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SOME NATURAL PHENOMENA | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 15 Some Natural Phenomena Some objects can be charged by rubbing with other objects. There are two kindsof charges — positive...
REPRODUCTION IN ANIMALS | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 9 Reproduction in Animals Reproduction is a process in which theorganisms produce theyoung ones oftheir own kind. There are...
REACHING THE AGE OF ADOLESCENCE | SPEED NOTES | SCIENCE | CBSE | CLASS 10
Chapter – 10 Reaching the age of Adolescence Humans become capable of reproduction after puberty setsin. Between theages of 11years and...
POLLUTION OF AIR AND WATER | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 18 Pollution of Air and Water Pollution: An undesirable change in the physical, chemical or biological characteristics ...
MICRO ORGANISMS FRIEND AND FOE | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 2 Micro-organisms: Friend and Foe Micro-organisms: Micro-organisms aretoo small andare not visible to the unaided eye. Theycan...
METALS AND NON METALS | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 4 Materials: Metals and Non-Metals Metals arestrong and durable. Thus metals areused so widely for making almost everything...
LIGHT 3 | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 16 Light Light: The natural agent that stimulates sight and makesthings visible. Lightis reflected from allsurfaces. It isa...
FRICTION | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 12 Friction Friction is a force thatopposes the relative motion between twosurfaces of objects in contact. Theforce of friction...
FORCE AND PRESSURE | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 11 Force and Pressure Force: A push ora pull, thatchanges or tendsto change thestate of restor of uniform motion of anobject or...
CROP PRODUCTION AND MANAGEMENT | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 1 Crop Production and Management In order toprovide food fora large population - regular production, proper management and...
CONSERVATION OF PLANTS AND ANIMALS | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 7 Conservation of Plants and Animals Biodiversity: Occurrence of innumerable number of different types of organisms and the...
COMBUSTION AND FLAME | SPEED NOTES | SCIENCE |CBSE | CLASS 8
Chapter – 6 Combustion and Flame Combustion: Theprocess of burning a substance inthe presence ofair (oxygen) andundergoes a chemical...
COAL AND PETROLEUM | SPEED NOTES | SCIENCE |CBSE | CLASS 8
Chapter – 5 Coal and Petroleum Natural Resources: Resources include everything provide by thenature. They form the wealth of a country....
CHEMICAL EFFECTS OF ELECTRIC CURRENT | SPEED NOTES | SCIENCE | CBSE | CLASS 8
Chapter – 14 Chemical Effects of Electric Current Materials through which electric current can pass through easily are called ...
CELL: STRUCTURE AND FUNCTIONS | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 8 Cell — Structure and Functions Cell: The smallest structural and functional unit of anorganism, which istypically microscopic...
WEATHER, CLIMATE AND ADAPTATIONS TO CLIMATE | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 7 Weather, Climate and Adaptations to Climate Weather: Weather is theday-to-day condition ofthe atmosphere ata place influenced...
WATER: A PRESIOUS RESOURCE | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 16 Water: A Precious Resource Water is essential for all living beings. No onecan imagine lifewithout water. Water exists in...
WASTE WATER STOREY | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 18 Waste water Story Waste water: Black-brown water whichis rich in lather , mixed withoil that goesdown the drains from skins,...
TRANSPORTATION IN ANIMAS AND PLANTS | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 11 Transportation in Animals andPlants Transportation inanimals: In most of the animals the blood that circulates in the body ...
SOIL | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 9 Soil Soil is the uppermost crust that covers the earth. It is a mixture of rock particles and humus. Soil is important for...
RESPIRATION IN ORGANISMS | SPEED NOTES | SCIENCE | CBSE CLASS 7
Chapter – 10 Respiration in Organisms Respiration isessential for survival of living organisms. It releases energy from the food. The...
REPRODUCTION IN PLANTS | SPEED NOTES | SCIENCE | CBSE | CLASS 7
All organisms multiplyor reproduce offspring of their own kind. In plants there are two modes of reproduction, namely (a) Asexual and (b)...
PHYSICAL AND CHEMICAL CHANGES | SPEED NOTES | SCIENCE | CBSE | CLASS 7
Chapter – 6 Physical andChemical Changes Changes can beof two types, physical and chemical. 1. Physical changes are changes in the...
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