NCERT Solutions for Class 6 Science Chapter 4 are provided here to make the students get familiarised with all the concepts involved in CBSE Science syllabus Sorting Materials into Groups part. This study material is very important for the students preparing for CBSE Class 6 examination.
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All the answers provided in this NCERT Solutions are prepared by subject experts at CoolGyan’S and will guide the students in clearing all their doubts on Sorting Materials into Groups. It lays a solid foundation by providing detailed answers to the exercise question in an easy to understand language.
NCERT Solutions for Class 6 Science is a significant study material, which has to be studied thoroughly to score good marks in Class 6 examination and to avoid difficulty in understanding advanced topics in future classes.
This solution conveys knowledge on objects around us, different types of material, their properties such as hardness opacity, similarities between different materials, their differences and the importance of grouping materials.
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Exercise Questions
1. Name five objects which can be made from wood.
Solution:
a) Table
b) Chair
c) Doors
d) Desk
e) Box
2. Select those objects from the following which shine: Glass bowl, plastic toy, steel spoon, cotton shirt
Solution:
Glass bowl and steel spoon are the objects which shine
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 | Material |
| Book | Glass |
| Tumbler | wood |
| Chair | Paper |
| Toy | Leather |
| Shoes | Plastics |
Solution:
| Objects | Material |
| Book | Paper, Wood |
| Tumbler | Glass, wood, plastic |
| Chair | wood, plastic |
| Toy | Glass, Wood, Paper, Plastics, Leather |
| Shoes | Leather, Plastic |
4. State whether the statements given below are True or False.
(i) Stone is transparent, while glass is opaque.
(ii) A notebook has lustre while eraser does not.
(iii) Chalk dissolves in water.
(iv) A piece of wood floats on water.
(v) Sugar does not dissolve in water.
(vi) Oil mixes with water.
(vii) Sand settles down in water.
(viii) Vinegar dissolves in water.
Solution:
i) False
ii)False
iii) False
iv) True
v) False
vi) False
vii) True
viii) 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
Solution:
(a) Round shaped – Basketball, Orange, Globe, Apple, Earthen pitcher
Other shapes – Water, Sugar
(b) Eatables – Water, Orange, Sugar, Apple
Non eatables – Basketball, Globe, 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.
Solution:
Few items that float on water are as follows:
- Sponge’s piece
- Plastic bottle
- Paper’s piece
- Thermocol’s piece
- Wood
- Plastic ball
- Cork
However, these items will not float on an oil or kerosene
7. Find the odd one out from the following:
a) Chair, Bed, Table, Baby, Cupboard
b) Rose, Jasmine, Boat, Marigold, Lotus
c) Aluminum, Iron, Copper, Silver, Sand
d) Sugar, Salt, Sand, Copper sulphate
Solution:
a) Baby – others are made up of wood
b) Boat – others are flowers
c) Sand – others are metals
d) Sand – others are soluble in water
Important topics covered in NCERT Solutions for Class 6 Science Chapter 4 Sorting Materials into Groups
- Objects Around Us
- Properties Of Materials
- Appearance
- Hardness
- Opacity
- Solubility
- Buoyancy
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