Indian All Education Board Solution
Changes around us Chapter 6 Exercises (অনুশীলনী) Ans:- We can reverse this change. We can bring the stranded water back to where it used to be. Ans:- This change is not a reversible change. Ans:- This change can be reversed. This is because a rubber can be erased and reversed. Ans:- The difference between changes…
Separation of Substances Chapter – 5 Exercises (অনুশীলনী) Ans:- The elements in the mixture need to be separated, because- Example- Removing stones from rice, Ans:- The method of separating the heavy and light components in a mixture by flowing into the air or air is called the process of harvesting. This method is used to…
Sorting Materials into Groups Chapter – 4 Exrecises (অনুশীলনী) Ans:- The names of the five items made of wood are chairs, tables, benches and cupboards. Ans:- The objects that shine are glass bowls and steel spoons. Ans:- Books – Papers (i) Stone is transparent, while glass is opaque. Ans:- False. (ii) A notebook has lustre…
Fibre to Fabric Chapter – 3 Exercises (অনুশীলনী) nylon, wool, cotton, silk, polyester, jute Ans. Natural fibres are wool, cotton, jute and jute. The synthetic fibres are nylon and polyester. a) Yarn is made from fibres. Ans. true. b) Spinning is a process of making fibres. Ans. false. c) Jute is the outer covering of…
Components of Food Chapter – 2 Exercises (অনুশীলনী) Ans. The main nutrients in our diet are carbohydrates, proteins, lubricants, vitamins and mineral salts. (a) The nutrients which mainly give energy to our body. Ans. The main nutrients that provide energy to our body are carbohydrates and lubricants. (b) The nutrients that are needed for the…
Food: Where Does it Come From? Chapter – 1 Exercises ( অনুশীলনী ) Ans. Not all living beings need the same kind of food. Ans. The 6 plants we eat and their parts are- Paddy plant – seed part. Radish tree – root part. Banana trees – fruits, flowers and plant parts. Ans. Column A…