NCERT Solutions for Class 6 Science
Chapter 4 Sorting Materials into Groups
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NCERT Solutions for Class 6 Science Chapter 4 Sorting Materials into Groups
1. Name five objects which can be made from wood.
Answer: Chair, table, plough, cricket bats, doors.
2. Select those objects from the following which shine: Glass bowl, plastic toy, steel spoon, cotton shirt.
Answer: Glass bowl, steel spoon.
3. Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a given material could be used for making many objects
| Objects | Materials |
|---|---|
| Book | Glass |
| Tumbler | Wood |
| Chair | Paper |
| Toy | Leather |
| Shoes | Plastics |
Answer:
| Objects | Materials |
|---|---|
| Book | Paper |
| Tumbler | Glass, Wood, Plastic |
| Chair | Wood, Plastic |
| Toy | Glass, Wood, Paper, Plastic |
| Shoes | Wood, Leather, Plastic |
4. State whether the statements given below are True or False.
(i) Stone is transparent, while glass is opaque.
Answer: False. [ Stone is opaque, while glass is transparent. ]
(ii) A notebook has lustre while eraser does not.
Answer: False. [ A notebook and eraser, both do not have lustre. Metals have lustre. ]
(iii) Chalk dissolves in water.
Answer: False. [ Chalk is made up of calcium carbonate which is insoluble substance. Thus, chalk does not dissolve in water. ]
(iv) A piece of wood floats on water.
Answer: True.
v) Sugar does not dissolve in water.
Answer: False. [ Sugar dissolves in water. ]
(vi) Oil mixes with water.
Answer: False. [ Density of oil is less than water, thus oil floats on water and do not mix with it. ]
(vii) Sand settles down in water.
Answer: True.
(viii) Vinegar dissolves in water.
Answer: True.
5. Given below are the names of some objects and materials:Water, basket ball, orange, sugar, globe, apple and earthen pitcher. Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables
Answer:
(a)Round shaped and other shapes –
- Round shaped: Basketball, orange, globe, apple and earthen pitcher.
- other shapes: Water and sugar.
(b)Eatables and non eatables –
- Eatables: Water, orange, sugar and apple.
- Non-eatables: Basketball, globe and earthen pitcher
6. List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
Answer:
- Items float on water: Playing card, Plastic bottles, boats, wood, paper, plant leaves, hairs, thermocol.
- Items float on oil: Plastic sheets, paper, thermocol.
- Items float on kerosene: Paper, thermocol, plastic sheets.
7. Find the odd one out from the following:
a) Chair, Bed, Table, Baby, Cupboard
Answer: Baby.
b) Rose, Jasmine, Boat, Marigold, Lotus
Answer: Boat.
c) Aluminium, Iron, Copper, Silver, Sand
Answer: Sand.
d) Sugar, Salt, Sand, Copper sulphate
Answer: Sand.
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Chapter 4 – Sorting Material Into Groups
