Separation of substances

How are grain seeds removed from their stalks?

• Sieving

• Winnowing

• Threshing

• All of the above

What is a mixture?

• A chemical combination of two or more different substances.

• A physical combination of two or more different substances.

• A chemically pure substance.

• A special type of solution

Which of the following is essential to perform winnowing activity?

• Wind

• Water

• Magnet

• Filter paper

Tags

NGSS.MS-ESS2-5

Hand picking method is effective in

• solid mixture

• Liquid mixture

• Gaseous mixture

• None of these

Salt is obtained from sea water by __________

• Sublimation

• Filtration

• Evaporation

• Hand picking

Butter is separated by curd

• Filtration

• churning

• heating

• sieving

Tags

NGSS.5-PS1-4

The method of separation in which heavier and lighter components of a mixture are separated with the help of wind is called

• Threshing

• Winnowing

• Sedimentation

• Sieving

To separate a mixture of stones and wheat flour, the method used is

• Sieving

• Winnowing

• Evaporation

• Filtration

The filtration process is used at our home to separate

• Paneer and liquid residue of sour milk

• Tea and tea leaves

• Fruit juice and fruit pulp

• Wheat flour and husk