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1. Food: Where Does It Come From?
1.1 Food Variety
1.2 Food Materials And Sources
1.3 Plant Parts And Animal Products As Food
1.4 What Do Animals Eat?
2. Components Of Food
2.1 What Do Different Food Items Contain?
2.2 What Do Various Nutrients Do For Our Body?
2.3 Balanced Diet
2.4 Deficiency Diseases
3. Fibre To Fabric
3.1 Variety In Fabrics
3.2 Fibre
3.3 Some Plant Fibres
3.4 Spinning Cotton Yarn
3.5 Yarn To Fabric
3.6 History Of Clothing Material
4. Sorting Materials Into Groups
4.1 Objects Around Us
4.2 Properties Of Materials
5. Separation Of Substances
5.1 Methods Of Separation
6. Changes Around Us
6.1 Can All Changes Always Be Reversed?
6.2 Could There Be Other Ways To Bring A Change?
7. Getting To Know Plants
7.1 Herbs, Shrubs And Trees
7.2 Stem
7.3 Leaf
7.4 Root
7.5 Flower
8. Body Movements
8.1 Human Body And Its Movements
8.2 “GAIT Of Animals”
9. The Living Organisms And Their Surroundings
9.1 Organisms And The Surroundings Where They Live
9.2 Habitat And Adaptation
9.3 A Journey Through Different Habitats
9.4 Living Things Around Us
10. Motion And Measurement Of Distances
10.1 Story Of Transport
10.2 How Far Have You Travelled? How Wide Is This Desk?
10.3 Some Measurements
10.4 Standard Units Of Measurements
10.5 Correct Measurement Of Length
10.6 Measuring The Length Of A Curved Line
10.7 Moving Things Around Us
10.8 Types Of Motion
11. Light, Shadows And Reflections
11.1 Transparent, Opaque And Translucent Objects
11.2 What Exactly Are Shadows?
11.3 A Pinhole Camera
11.4 Mirrors And Reflections
12. Electricity And Circuits
12.1. Electric Cell
12.2. A Bulb Connected To An Electric Cell
12.3. An Electric Circuit
12.4. Electric Switch
12.5. Electric Conductors And Insulators
13. Fun With Magnets
13.1 Magnetic And Non-Magnetic Materials
13.2 Poles Of Magnet
13.3 Finding Directions
13.4 Make Your Own Magnet
13.5 Attraction And Repulsion Between Magnets
14. Water
14.1 How Much Water Do We Use?
14.2 Where Do We Get Water From?
14.3 Water Cycle
14.4 Back To The Oceans
14.5 What If It Rains Heavily?
14.6 What Happens If It Does Not Rain For A Long Period?
14.7 How Can We Conserve Water
14.8 Rainwater Harvesting
15. Air Around Us
15.1 Is Air Present Everywhere Around Us?
15.2 What Is Air Made Up Of?
15.3 How Does Oxygen Become Available To Animals And Plants Living In Water And Soil?
15.4 How Is The Oxygen In The Atmosphere Replaced?
16. Garbage In, Garbage Out
16.1 Dealing With Garbage
16.2 Vermicomposting
16.3 Think And Throw
16.4 Recycling Of Paper
16.5 Plastics – Boon Or A Curse?
