Biology, chapter 1 Crop production and Management Why do we need food? Define Agriculture? Agriculture is applied science that deals with mass production of crop plants and animals used for human beings. What are the other means of food production apart from agriculture?? Why Crop production is essential? To fulfil the food requirement of a…
Author: Raji Senthil
class 8 synthetic fibres and plastics
Class 8 Chemistry Chapter 3: Synthetic Fibres and Plastics 1. Define Fibre? Fibre is a strong and flexible thread like material that is used to make fabric. It is used to make ropes and nets and several household items. 2.What are the two types of Fibres? Natural fibres are of two types 3. What is…
Class 8 Metals and Non Metals
CH-4 Materials: Metals & Non metals 1. Define Matter? 2. Define Element? 3.How are Elements classified? 4. Define Ores? 5.What is Gangue ? In Ores, there are certain impurities present along with metallic minerals. These impurities are called as Gangue. 6.Define Metallury ? The series of processes carried out to extract pure metals from their…
Class 8 Some Natural Phenomena
Class 8, Physics We shall study about Lightning and Earthquake in detail Lightning Lightning occurs because of the massive electric charge flowing from clouds, from one part of cloud to another or from a cloud to ground. Electrostatic Force: Rubbing a comb against dry hair / rubbing a balloon against woollen material produce a force…
Class 8 Coal and Petroleum
Coal & Petroleum. 1. What are Natural Resources? 2. How are Natural resources classified? Depending on abundance and availability they are classified into Exhaustible Natural resources and Inexhaustible natural resource. Inexhaustible Natural Resources Exhaustible Natural Resources These are present in unlimited quantity in nature. These resources are present in limited quantity in nature These resources…
class 8 Reaching age of adolescence
Few Important terms: Define Puberty?? What are the changes that takes place due to Puberty and Adolescence?? Increase in Height Change in the body shape: During Puberty, both boys and girls undergo changes in the body shape. Boys Girls Shoulders become broader and chest becomes wider. Hips gain weight and region below wasit pelvic…
class 8 Stars and Solar system
Stars and Solar System We are not able to see the back side of the moon? Why? Phases of the Moon: The day today changes in the shape of the moon as seen from the earth is called as phases of the moon. There are 6 Phases 1. New moon 2. Waxing crescent moon 3….
Class 7 Social Science
Geography History Useful links: CBSE CLASS 6 SOCIAL SCIENCE CBSE CLASS 7 SOCIAL SCIENCE CBSE CLASS 7 MATHS CBSE CLASS 8 MATHS CBSE CLASS 8 SCIENCE
class 7 Life in desert regions
Class 7, Geography Life in Desert regions Questions covered are: Write a short note on Desert? What are the two types of Deserts? Write the major difference between Tropical desert and Cold deserts? List few Tropical deserts? One word: ****************************************************************************** Write a short note on Desert? What are the two types of Deserts? Write the…
class 7 Life in Temperate Regions
Class 7, Geography Chapter 11: Life in Temperate regions Write the major difference between Prairies and Velds? Prairies Velds The temperate grasslands of North America are known as Prairies. In Latin “Pratum” means Meadow or Grassland The temperate grasslands of South America are termed as Velds. In Dutch it means “Field” These are located in…