How is winnowing done?

Important Questions on Separation of Substances

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 3

What is sieving? Pebbles are separated from sand by using a large sieve by construction sites. Why?

HARD

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 4

Explain how will you separate a mixture of chalk powder and water using a filter paper.

HARD

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 5

Explain the method that you would use to separate a mixture of water and cooking oil.

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 6

Give reason for the following:
Tea granules are separated from tea.

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 6

Give reason for the following:
Small stones and husk are separated from dal or rice before cooking.

MEDIUM

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 6

Give reasons for the following:
Pebbles are separated from sand.

EASY

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 6

Give reasons for the following:
After harvesting the crop, the farmer cannot separate husk from grains by handpicking.

EASY

6th CBSE

IMPORTANT

Science Booster>Chapter 5 - Separation of Substances>PRACTICE TIME>Q 6

Give reasons for the following:
Water is called a universal solvent.