Ch – 5 Separation Of Substances

We separate substances because – 1 – To get useful components from that mixture. 2 – To remove non-useful components. 3 – To remove impurities. 4 – To remove harmful components. The substances to be separated may be particles of different sizes or materials. These may be in any three states of matter i.e., solid,

Ch – 4 Sorting Materials Into Groups

All objects around us are made of one or more materials. Grouping is done on the basis of similarities or dissimilarities of materials. The properties of materials are Appearance, Hardness, Solubility, Transparency, etc. Some materials can be lustrous or non-lustrous in appearance. Lustrous materials are diamond, freshly cut metals, gold foil, etc. Some metals often

Ch – 2 Components Of Food

Different food items are eaten in different parts of India. Each meal consists of at least one grain item. The components needed by our body to survive are known as ‘nutrients’. The major nutrients in our food are named carbohydrates, proteins, fats, vitamins and minerals. In addition, food contains dietary fibres and water which are

Ch – 4 Mangoes Round The Year

The food items that get spoilt easily are known as ‘Perishable Food Items’. The food items that do not get spoilt easily and can be stored for a long time are known as ‘Non-Perishable Food Items’.  Some of the perishable food items are milk, fruits, vegetables, bread, etc. Some of the non-perishable food items are

Ch – A Snake Charmer’s Story

Saperas are those people who catch snakes. They keep the snakes in bamboo baskets. They also make medicines from plants collected from forests. They also cure snake bites. They can tell which snake had bitten by looking at the snake bite marks. The poisonous teeth of snakes are known as ‘fangs’. Saperas play been to