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 CHAPTER 4 HEAT  Here is some important points and answer of chapter 4 Heat  NCERT science of class 7 which helps students to better understand topics of chapter 4 Heat. Important Points:- I) Conduction:- The process by which heat is transferred from the hotter end its colder end of an object  is known as Conduction. 2) Conductor:- Material which allow to heat pass through them easily are known as conductor. 3) Convection:- The process by which heat is transmitted in liquid and gas through any medium is known as convection. 4)Insulator:- Material which do not allow to hear pass through them easily are known as insulator. Example:- wood, plastic etc. 5) Land breeze:- During night when hot air rise from sea surface and cold air of land surface  move towards sea surface known as land breeze. 6) Radiation:- When the heat is transfer in surrounding without any medium is known as radiation. 7)Sea breeze:- During day time when cold air of sea surface move towards land surface is known sea bre

 Chapter 3 Fibre To Fabric Here is some important points and answer of chapter 3 Fibre To Fabric NCERT science of class 7 which helps students to better understand topics of chapter 3 Fabric to Fibre. Keywords:- a) Cocoon:- Caterpillar of silkmoth turn in pupa and covered themself in a outer covering made by protein that outer cover is known as cocoon. b)Fleece:- Hairs of wool yeilding animals are known as fleece. c) Reeling:- Converting of hairs or silk in thread and roll them is known as reeling. d) Scouring:- Washing or remaining dust particles from removed hairs of animals is called scouring. e) Sericulture:- Rearing of silkmoth for getting silk is known as sericulture. f)Silk moth:- Bee like insects which provide silk are called silk moth. g) Shearing:- Removing of hairs of wool yielding   animals is known as shearing. h)Silk worm:- Larva of a silk moth is also  known as silk worm. i)Sorting:- Seperating of wood fibre according  to their texture is known as sorting. j)Rearing:- Ke

CHAPTER 2  NUTRITION IN ANIMALS Here is some important points and answer of chapter 2 NUTRITION IN ANIMALS NCERT science of class 7 which helps students to better understand topics of chapter 2 NUTRITION IN ANIMALS. Keywords :- a) Absorption:- Absorbing of digested food by the small intestine is known as Absorption. b)Amoeba:- It is unicellular organism which can change its shape. c) Assimilation:- Transfer of digestion food  and its utilisation is known as assimilation. d)Egestion:- Removing out waste from body is known Egestion. e)Bile:- A yellowish liquid release from liver. f)Villi:- Finger like projection present in small intestine help in absorb digested food. g)Digestion:- The break down of complex form of food into simple form is known as Digestion. h) Ruminant:- The animals which chew cud are called Ruminants. These are the important keynotes of Chapter 2 Nutrition in Animals. Here is the Solution Of textbook CHAPTER 2 Nutrition In Animals. Exercise Questions- Ques 1. Fill in