Noor Alam CBSE Class 6 Science Notes Chapter 5 Separation of Substances Pure Substances: Many substances around us contain only one type of constituent particles. Elements and compounds are pure substances. Some of the pure substances are iron, copper, water, salt, etc. Impure Substances: Substances containing more than one type of constituent particles are called impure substances. Some of … Read more
CBSE Class 6 Science Notes Chapter 15 Air Around Us Wind: When air is in motion, it is called wind. Air: Air is a mixture of different gases. Properties of air It is colourless i.e., it has no colour and taste. It is transparent i.e., we can see through it. Air occupies space. It fills all the … Read more
CBSE Class 6 Science Notes Chapter 11 Light, Shadows and Reflection Source of light: An object which emits light, is called a source of light. For example, sun, torch, etc. Non-luminous objects: These are the objects which do not emit light of their own. Such a body becomes visible when light falls on it. For example, the … Read more
Components of Food Class 6 Science Chapter 2 CBSE Class 6 Science Notes Chapter 2 Components of Food Food: It is the group of edible substances which provide energy to the living beings and repair the old tissues and build the new tissues. Nutrition: The process of consuming nutrients required for the growth and development of our … Read more