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