CBSE  /  Class 6  /  Science  /  Sorting Materials Into Groups

  • 1. 
    What makes the basis of sorting materials into groups?

  • Similarities in their properties
  • Differences in their properties
  • Both similarities and differences in their properties
  • All of these

  • 2. 
    Which one will show a metallic lustre?

  • Any surface of a metal
  • Freshly cut surface of a metal
  • Freshly cut surface of non-metal
  • Surfaces of all materials

  • 3. 
    An oily thin paper sheet will be

  • transparent
  • translucent
  • opaque
  • cannot be predicted

  • 4. 
    Purpose of sorting material into groups is

  • to rtudy their properties
  • convenience
  • both (a) and (b)
  • inconvenience

  • 5. 
    Which is a set of transparent materials?

  • Glass and air
  • Water and glass
  • Water and air
  • All of these

  • 6. 
    Choose the opaque object from the following:

  • Charcoal
  • Air
  • Glass
  • Water

  • 7. 
    Which one of the following is not soluble in water?

  • Turmeric powder
  • Common salt
  • Alum
  • All are soluble

  • 8. 
    Which object shines?

  • Plastic toy
  • Cotton shirt
  • Steel spoon
  • Stone piece

  • 9. 
    Which of the following has reddish brown colour?

  • Gold
  • Copper
  • Iron
  • Brass

  • 10. 
    Which one of the following is insoluble in water?

  • Alcohol
  • Sodium chloride
  • Coconut oil
  • Sugar
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