Sorting Materials into Groups | Chapter 4 | Class 6 | Science | NCERT
Exercise
Question 1. Name five objects which can be made from wood.
Answer:
a) Table
b) Chair
c) Doors
d) Desk
e) Box
Question 2. Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt
Answer: Glass bowl and steel spoon are the objects which shine.
Question 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 |
| Chair | Wood |
| Toy | Plastics |
| Shoes | Leather |
Question 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 an 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 the water.
(viii) Vinegar dissolves in water.
Answer:
i) False
ii)False
iii) False
iv) True
v) False
vi) False
vii) True
viii) True
Question 5. Given below are the names of some objects and materials:
Water, basketball, 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 – Basketball, Orange, Globe, Apple, Earthen Pitcher
Other shapes – Water, Sugar
(b) Eatables – Water, Orange, Sugar, Apple
Non-eatables – Basketball, Globe, Earthen Pitcher
Question 6. List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
Answer:
A 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 oil or kerosene.
Question 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
Answer:
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
NCERT Class 6 Science
Chapter 1: Food: Where Does It Come From?
Chapter 4: Sorting Materials and Groups
Chapter 5: Separation of Substances
Chapter 7: Getting to Know Plants
Chapter 9: The Living Organisms and Their Surroundings
Chapter 10: Motion and Measurement of Distances
Chapter 11: Light, Shadows and Reflections