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class 6 www.learnroots.com www.reflectivelearn.com cbse class6 lesson summary cbse class iv science evs olympiad icse online education educational portal science class6 ncert maths olympiad reflective learning science science olympiad different kinds of materials proteins fats vitamins minerals fibres their sources and significance for human health b class 6 science green plants properties of materials appearance float /sink transparent hardness solubility objects around us summary of chapter adaptations-how animals surviv water treatment animals & young ones clothes states of matter soil water supply carbohydrates components of food types of changes ;physical and chemical changes;fa diseases and disabilities due to food deficiencies changes around us water resources water cycle importance of water and usage sources of water rainwater harvesting drought and floods sources of food plant parts and animal products as sources of food omnivores what do other animals eat? food materials and sources food variety carnivores herbivores decantation and filtration separation of substances sieving winnowing methods of separation sedimentation handpicking making a artificial magnet magnetic and non-magnetic materials fun with magnets directions using poles of a magnet magnets attraction an repulsion between magnets poles of a magnet fibre to fabric ;fibres and natural fibres; plant fibres ;developm electricity ; electric cell ; battery; electric bu electricity and circuits water conservation