Question

Q. 3. Match the columns :
Coiumn 'A'
Answers
Column 'B
(1) Substances that can dissolve
(2) Substances that cannot dissolve-
(3) Things heavier than water
(a) Dry leaves, twigs
(b) Nail, soil
(c) Sugar, salt
(d) Oil, Flour
(4) Things lighter than water​

Answer 1

(1) => (c) Sugar, salt

(2) => (b) Nail, soil

(3) => (a) Dry leaves, twigs

(4) => (d) Oil, Flour

Explanation:

1. Sugar and salt can be dissolved to form dilute solution.
2. Substances like nail and soil have larger particles which can't be destroyed further and thus, they don't get dissolved properly.
3. Dry leaves and twigs have much mass/inertia/number of particles and due to this, they exceed the limit to float in water and sink in it.
4. Oil and Flour are lighter as they have less density in comparison with water. For example while experimenting, you can see that oil is immiscible and therefore it remains above the liquid.

Dear Avinash,

I thank you very much from the bottom of my heart for marking this answer as Brainliest. It means a lot.

Answer 2

• From the given question the correct answer is as follows :

    1)  Substances that can dissolve.      →    (c) Sugar, salt.

    2) Substances that cannot dissolve. →    (b) Nail, soil.

    3) Things heavier than water.            →    (a) Dry leaves, twigs.

    4) Things lighter than water.​              →    (d) Oil, Flour.

• As we know that sugar and salt dissolve and form a solution.

• The nail and soil are substances that can not be dissolved.

• As we know the dry leaves and twigs are heavier than the water. they have a lot of mass.

• The flour and oil are lighter than water. they have less density.