Sorting Materials Into Groups
10 Questions
| Total Attempts: 161
Questions and Answers
- 1.An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?
- A.
(a) Mustard oil
- B.
(b) Soft drink
- C.
(c) Coconut oil
- D.
(d) Kerosene
- 2.Soft substances are easy to scratch
- A.
True
- B.
False
- 3.Mirror is a/an_____________kind of substance (Opaque/Transparent)
- 4.While doing an activity in class, the teacher asked Paheli to handover a transluscent material. Which among the following materials will Paheli pick and give her teacher?
- A.
(a) Glass tumbler
- B.
(b) Mirror
- C.
(c) Muslin cloth
- D.
(d) Aluminium foil
- 5.Boojho found a bag containing the following materials (i) Mirror (ii) Paper stained with oil (iii) Magnet (iv) Glass spectacles Help Boojho in finding out the material(s) which is/are opaque.
- A.
(a) (i) only
- B.
(b) (iv) only
- C.
(c) (i) and (iii)
- D.
(d) (ii) and (iv)
- 6.Which pair of substances among the following would float in a tumbler half filled with water?(one or more correct options are right)
- A.
(a) Cotton thread, thermocol
- B.
(b) Feather, thread
- C.
(c) Pin, oil drops
- D.
(d) Rubber band, coin
- 7.Which of the following statements is not true?
- A.
(a) Materials are grouped for convenience.
- B.
(b) Materials are grouped to study their properties.
- C.
(c) Materials are grouped for fun.
- D.
(d) Materials are grouped according to their uses.
- 8.Which type of the following materials is used for making the front glass (wind screen) of a car?
- A.
(a) Transparent
- B.
(b) Translucent
- C.
(c) Opaque
- D.
(d) All the above
- 9.Which among the following are commonly used for making a safety pin?
- A.
(a) Wood and glass
- B.
(b) Plastic and glass
- C.
(c) Leather and plastic
- D.
Steel and plastic
- 10._____________is a gas that dissolves in water and is important for marine life.
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