◾The earth is made up of rocks and soil . ◾The rocks are made up of small grains which are of naturally occurring substances known as minerals. KINDS OF ROCKS: 1. Igneous Rocks ◾The word Igneous means fiery (consisting of fire). ◾ These rocks are formed by the cooling of molten rocks. Q. Define magma. Ans - The hot liquid-rock, that lies below the earth's crust is called magma. Q. Define lava. Ans - The magma that reaches the earth's crust and flows out is called lava.
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Science : Food and Health (Class V)
Q. Define diet. Ans: The food we eat daily is called our diet. Q. Define balance diet. Ans: A balanced diet gives your body the nutrients it needs to function correctly. CARBOHYDRATES: ◾ It gives us energy to work and play. ◾ Cereals, potatoes, sugar, bread, etc contain carbohydrates. ◾ It is also known as energy-giving food. FATS: ◾ It is the source of stored energy in our body. ◾It gives us energy more than carbohydrates. ◾Butter, ghee, oil, etc contain fats. ◾ It is also known as energy-giving food. PROTEINS: ◾ These are essential for growing children. ◾Milk, egg, meat, peas and fish contain protein. ◾They are also known as body-building food. VITAMINS & MINERALS: ◾ Vitamins kerp us fit and help us to fight diseases. ◾Minerals help us in the growth and development of body. ◾They both are known as protective food. ROUGHAGE: ◾ It means fibre which is present in fruits and vegetables. ◾It helps our body to get r...