This chapter explains topics such as Plant Fibres, Type of Soil for the Cultivation of Fibrous Plants, Spinning of Cotton Threads, Jute, etc.
This chapter explains topics such as The Fundamental Unit of Matter, States of Matter, Molecular Structure of Matter, Language of Chemistry, etc.
This chapter explains topics such as Physical Changes, Chemical Changes, Difference Between Physical and Chemical Change, Crystallization, etc.
This chapter explains topics such as Necessity of Water, Utility of Water, Sources of Water, Physical Properties and States of Water, etc.
This chapter explains topics such as Air, Composition of Air, Need and Utility of Oxygen Present in Air, Utility of Air, etc.
