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Last Updated 05/11/2020
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Watch Chapter-wise Videos
Chapter 1 - Crop Production and Management 4 Lectures
1.1 Crop Production and Management - Introduction
Types of Crops
Multiple Agricultural Practices Explained
1.2 Manure and Fertilizers - Introduction
What is irrigation?
Sources of irrigation?
Traditional methods of irrigation?
What is drip system?
What is harvesting?
1.4 Crop Production and Management - FAQs
Chapter 2 - Microorganisms - Friend and Foe 5 Lectures
2.1 Microorganisms : Friend and Foe - Introduction
What are microorganisms?
Activity related to microorganisms?
What is a virus?
Types of viruses?
2.2 Where do Microorganisms Live?
What are the advantages and disadvantages of microorganisms?
2.3 Food Preservation
What do we mean by food preservation?
What are the methods of food preservation?
2.4 Nitrogen Cycle
What is a nitrogen cycle?
Process of the nitrogen cycle?
2.5 Microorganisms : Friend and Foe - FAQs
Chapter 3 - Synthetic Fibres and Plastics 3 Lectures
3.1 Synthetic Fibres
What are synthetic fibres?
Properties of synthetic fibres?
Types of synthetic fibres?
Activity related to fibres?
Characteristics of synthetic fibres?
What are plastics?
Types of plastics?
Characteristics of plastics?
How plastics affect environment?
How can we protect environment?
3.3 Synthetic Fibres and Plastics - Ncert Solution
Chapter 4 - Materials - Metals and Non-metals 4 Lectures
4.1 Physical Properties of Metals and Non-Metals
4.2 Chemical Properties of Metals and Non-Metals
What is rust?
Activity related to rust?
4.3 Reaction With Water
How metals and non-metals react with water?
Reaction with acids?
Activity related to metals and nonmetals?
What are displacement reactions?
Uses of metals and non-metals?
4.4 Materials - Ncert Solution
Chapter 5 - Coal and Petroleum 2 Lectures
What is coal?
How coal formed?
What are natural resources?
Types of natural resources?
What is coke?
What is coal tar?
What is petroleum?
What is refining of petroleum?
Uses of petroleum?
What is natural gas?
What are the various limited natural resources?
Chapter 6 - Combustion and Flame 3 Lectures
What is combustion?
Activity related to a combustion?
How do we control fire?
6.2 Types of Combustion
What is the structure of a flame?
What is fuel?
What are the consequences of the burning of fuels?
6.3 Combustion and Flame - NCERT Solutions
Chapter 7 - Conservation of Plants and Animals 3 Lectures
7.1 Deforestation and Its Causes
What is deforestation?
What are the causes of deforestation?
Consequences of deforestation?
Conservation of forest and wildlife?
7.2 Endemic Species
What are endemic species?
What do we mean by national park?
What is red data book?
How birds migrate and why?
Recycling of paper?
What is reforestation? Why it is necessary?
7.3 Conservation of Plants and Animals - Ncert Solution
Chapter 8 - Cell Structure and Functions 3 Lectures
8.1 The Cell
What is a cell?
Who discovered cell?
Number of cells?
Shape of cells?
Size of cells?
Cell structure and its functions?
8.2 Comparison of Plant and Animal Cells
What are the types of cells?
Activity related to cell?
Parts of the cell?
8.3 Cell Structure and Functions - FAQs
Chapter 9 - Reproduction in Animals 3 Lectures
9.1 Sexual Reproduction
What are the modes of reproduction?
Male and female reproductive organs?
What is fertilization?
Development of embryo?
9.2 Asexual Reproduction
What are viviparous and oviparous animals?
What is asexual reproduction?
How asexual reproduction differs from sexual reproduction?
What is ameba?
9.3 Reproduction in Animals - FAQs
Chapter 10 - Reaching the Age of Adolescence 4 Lectures
10.1 Changes at Puberty
What is adolescence?
What is teenage?
What are the changes that happen in a body of a teenager?
10.2 Sex Determination
Reproductive phase of life in humans?
How the sex of baby determined?
What is the role of hormones in initiating the reproductive function?
What is reproductive health?
10.4 Reaching the Age of Adolescence - FAQs
Chapter 11 - Force and Pressure 4 Lectures
11.1 Force - Introduction
What is a force?
How forces have happened?
Activities related to forces?
11.2 Contact Forces
What are contact forces?
What is friction?
What are non-contract forces?
Activity related to force?
What is gravitational force?
What is pressure?
How pressure exerted by liquids and gases?
Activity related to pressure?
What is atmospheric pressure?
11.4 Force and Pressure - NCERT Solutions
Chapter 12 - Friction 3 Lectures
12.1 Force of Friction
What do we mean by force of friction?
What is spring balance?
What are the factors that affect friction?
12.2 Increasing and Reducing Friction
What are increasing and reducing frictions?
Activity related to friction?
How do wheels reduce friction?
What is fluid friction?
12.3 Friction - NCERT Solutions
Chapter 13 - Sound 4 Lectures
13.1 Vibrating Body Sound
What is sound?
How humans can produce sound?
Activities related to sound?
13.2 Sound Produced by Humans
Which is the vibrating part of a human body that creates sound?
Different activities related to sound?
Properties of sound amplitude, time period, frequency?
13.3 Noise Pollution
What is loudness?
What are audible and inaudible sounds?
What is noise pollution?
Consequences of noise pollution?
Measures to limit noise pollution?
13.4 Sound - Solutions
Chapter 14 - Chemical Effects of Electric Current 3 Lectures
14.1 Chemical Effects of Electric Current - Introduction
Do liquids conduct electricity?
Different activities related to current?
What is electroplating?
Activity related to electroplating?
What is the use of electroplating?
14.3 Chemical Effects of Electric Current - Solutions
Chapter 15 - Some Natural Phenomena 4 Lectures
What do we mean by lightning?
How do lightning cause?
What are the types of charges?
Transfer of charge?
Activities related to charge?
15.2 The Story of Lightning
What are the ways which help people to protect from lighting?
What are lightning conductors?
What do we mean by an earthquake?
What causes an earthquake?
Protection against an earthquake?
15.4 Some Natural Phenomena - NCERT Solutions
Chapter 16 - Light 4 Lectures
16.1 What Makes Things Visible
What is light?
How does light help to make things visible?
Laws of reflection?
Activity related to light?
16.2 Regular and Diffused Reflection
What are regular and diffused reflections?
Activity related to reflection?
What is a kaleidoscope?
Is sunlight a white or colored?
16.3 What is Inside Our Eyes
What are the various parts exist inside our eyes?
Activities related to visibility of eyes?
How can we take care of our eyes?
What is Braille system?
16.4 Light - NCERT Solutions
Chapter 17 - Stars and the Solar System 4 Lectures
17.1 Celestial Objects
What are celestial objects?
The moon and the phases of the moon?
What are the stars?
Facts about stars?
17.2 The Stars
What is a pole star?
What are constellations?
17.3 The Solar System
What is the solar system?
Which are the various planets that exist in a solar system?
Some other members of solar system?
17.4 Stars and the Solar System - NCERT Solutions
Chapter 18 - Pollution of Air and Water 3 Lectures
18.1 Air Pollution
What is air pollution?
Causes of air pollution?
What is the greenhouse effect?
18.2 Water Pollution
What is water pollution?
What are water pollutants?
How does water get polluted?
What are the various ways which can be used to prevent water pollution?