Give one example of sieving used in everyday life.

2

(a)

Winnowing is based on which property?

2

(a)

Which method is used to separate the pieces of stones from grains?

2

(a)

Water is separated from rice and pulses after washing them. How?

2

(a)

Write one purpose of separating substance from a mixture.

2

(a)

How chalk powder can be separate from a mixture of chalk powder and water?

2

(a)

Which method of separating tea leaves from prepared tea is better, decantation or filtration?

2

(a)

What will happen if a high quantity of substances forced to dissolve in the fixed amount of water?

2

(a)

Does water dissolve equal amounts of different soluble substances?

2

(a)

Write down the components of the following mixtures.
(a) air, (b) soil

2

(a)

In sharbat, what should be mixed first, ice cubes or sugar?

2

(a)

Write the steps involved in distillation.

2

(a)

What is a saturated solution?

2

(a)

Differentiate between homogeneous and heterogeneous solution.

2

(a)

Raghav is given a glass bottle with some white substances in it that is either chalk or sugar. How can be find out which of the two is sugar or chalk, without tasting it.

2

(a)