Ncert – class 6- science – Chapter 2: Sorting Materials and Groups Welcome to your Ncert - class 6- science - Chapter 2: Sorting Materials and Groups 1. Which of the following objects are generally made from leather? Shoes Bags All of the above Belts None 2. Which of the following type of bodies form sharp shadows when placed in the path of light? Translucent Both A and B Opaque Transparent None 3. Most rubber bands and tyres are made of rubber. This is because rubber is: elastic and strong cheap an electrical insulator naturally available None 4. Which of the following is lustrous? Football Plastic chair Wooden furniture Steel furniture None 5. Which of the following properties of materials is not considered during classification? Mass Transparency Solubility Conductivity None 6. Name two transparent materials. Plastic and glass Plastic and cold wax Water and honey Glass and wood None 7. What do you call a substance through which things are partially visible? Transparent object Translucent object Opaque object Lustrous object None 8. How many of the following are soluble in water?salt, sugar, sand, dust 4 2 1 3 None 9. Translucent substance __________. does not allow the light to pass through it allows light to pass through it completely None of these allows light to pass through it partially None 10. Why metals lose their shine over a period of time? Because of air and moisture Because of the action of pollens in the air Because of coming in contact with other metals Because of being kept covered None 11. You are provided with the following four materials like wood, plastic, wool, and steel. Which of the given material will you identify as hardest and softest respectively? Wood and wool Steel and wool Wool and steel Plastic and steel None 12. During the formation of rain, when water vapour changes back to liquid in the form of rain drops: heat is absorbed heat is released heat is first absorbed and then released there is no exchange of heat None 13. Cart, wheels and plough these materials are made up of : None of these metal wood plastic None 14. A vendor sells white powdered salt mixed with white powdered stone. The knowledge of which property will help you detect this malpractice? Ductility Density Opacity Solubility None 15. What is the criterion for choosing a material to make an object? Purpose of the object only Nature and colour of the material only Properties of the material only Both properties of the material and purpose of the object None 16. Which of the following substances are not types of raw material? Soil, leather, metal Wood, paper, plastic Glass, cotton, steel Books, belt, newspaper None 17. Iron, copper and gold appear different but still have similarities". This statement is justified by which of the following statements? They are metallic and lustrous. None 18. Select the objects which are opaque. water, oil and soil glass, grass and gum marvel, oiled paper and magnet soil, sand and dust None 19. A few substances are arranged in order of increasing force of attraction between their particles. Which one of the following represents a correct arrangement? Air, Sugar, Milk Sugar, Milk, Air Milk, Sugar, Air Air, Milk, Sugar None 20. Light cannot pass through a cardboard. What kind of object is it? Opaque Translucent Woody Hard None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
