NCERT Solutions for Class 6 Science Chapter 4 Sorting Materials into Groups

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Sorting Materials into Groups NCERT Solutions for Class 6 Science Chapter 4

Class 6 Science Chapter 4 Sorting Materials into Groups Exercise Questions and Answers

Question 1.
List five things which can be made from wood.
Answer:
Table, chair, bullock cart, boat, bed.

Question 2.
Select those objects from the following which shine :
Glass bowl
Plastic toy
Steel spoon
Cotton shirt
Answer:

• Glass bowl
• Plastic toy
• Steel spoon

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
(i)  Book	Glass
(ii)  Tumbler	Wood
(iii)  Chair	Paper
(iv)  Toy	Leather
(v)  Shoes	Plastics

Answer:

Objects	Materials
(i)   Book	Paper
(ii)  Tumbler	Glass, plastics
(iii)  Chair	Wood, plastics
(iv)  Toy	Wood, plastics
(v)  Shoes	Leather

Question 4.
State whether the statements given below are True or False:

1. Stone is transparent, while glass is opaque.
2. A notebook has lustre while eraser does not.
3. Chalk dissolves in water.
4. A piece of wood floats on water.
5. Sugar does not dissolve in water.
6. Oil Mixes with water.
7. Sand settles down in the water.
8. Vinegar dissolves in water.

Answer :

1. False
2. False
3. False
4. True
5. False
6. False
7. True
8. 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 :

1. Basket ball
2. Orange
3. Globe
4. Apple
5. Earthen pitcher

Other Shapes :

1. Water
2. Sugar

(b) Eatables :

1. Water
2. Orange
3. Sugar
4. Apple

Non-eatables :

1. Basket ball
2. Globe
3. Earthen pitcher

Question 6.
List all items known to you that float on water.
Answer:
List of items that float on water: Wood, plastic, thermocol, oil, etc. To students: Check and see that above-listed items will float on oil or kerosene.

Question 7
Find the odd one out from the following :
(a)
1. Chair
2. Bed
3. Table
4. Baby
5. Cupboard
Answer:
4. Baby

(b)
1. Rose
2. Jasmine
3. Boat
4. Marigold
5. Lotus
Answer:
3. Boat

(c)
Aluminium
1. Iron
2. Copper
3. Silver
4. Sand
Answer:
4. Sand

(d)
1. Sugar
2. Salt
3. Sand
4. Milk
5. Milk Powder
Answer:
3. Sand

Class 6 Science Chapter 4 Sorting Materials into Groups InText Questions and Answers

Activity 1

Take four glass tumblers or test tubes. Fill them upto half with water. Take about one teaspoon of vinegar, lemon juice, mustard oil or coconut oil. Add a teaspoon full of vinegar to the first test tube and shake it well. Let it stand for five minutes. Repeat the same with other substances. Observe what happens. Write your observations in table 4.4.

Liquid	Mixes well/Does not Mix
Vinegar
Lemon juice
Mustard oil
Coconut oil
Glycerine

Answer:

Liquid	Mixes well/Does not Mix
Vinegar	Mixes well
Lemon juice	Mixes well
Mustard oil	Does not mix
Coconut oil	Does not mix
Glycerine	Does not mix

Activity 2

Question 1.
Take a sheet of paper and look through it towards a lighted bulb. Can you see the bulb ?
Answer:
No.

Question 2.
Now, spread 2-3 drops of an oil on the sheet of paper. Look again towards the lighted bulb through that portion of the paper on which the oil has been put. What do you observe ?
Answer:
We can see the bulb through the oiled portion of the paper but not very clearly.