Chapters

Important Topics

1.Food

• Sources of Food

• Component of Food

• Cleaning Food

Plant parts and animal products as sources of food; herbivores, carnivores, omnivores, balanced diet; diseases and disabilities due to food deficiencies, winnowing, handpicking, etc

2.Materials

• Materials of daily use

• Different kind of materials

• How things change/ react with one another

Development of clothing materials, production of cotton, jute and other locally available plant fibres, Grouping things on the basis of common properties, At the same temperature amounts of different substances that dissolve varies, etc.

3. The World of Living

• Things around us

• The habitat of the living

• Plants - form and function

• Animals - forms and function

habitat, biotic, abiotic, other plant part modifications like tendrils, stem and leaves. Structure of the flower, some other animals, etc.

4. Moving Things, People and Ideas

• Moving

Motion as a change in position with time, Need to measure distance, etc

5. How things work

• Electric Current and circuits

• Magnets

Measurement of length, Conductor, Insulator, Poles of a magnet. A freely suspended magnet always aligns in a particular direction, etc.

6. Natural Phenomena

• Rain, thunder and lightning

• Light

Evaporation and condensation, translucent and opaque, A shadow is black irrespective of the colour of the object, Reflecting surfaces, etc.

7. Natural Resources

• Importance of water

• Waste

Droughts and floods, Some animals and plants live in water, things that rot and things that don’t. Rotting is supported by animals/animal and plant products, etc.