Science Revision

Butter is seperated from milk by

• Sedimentation

• Evaporation

• Churning

• Decantation

___________ is prepared by dissolving a substance in a liquid.

• Saturated solution

• Soluable substance

• Solution

• None of these

Threshing is done by

• Beating

• Bullocks

• Machines

• All of these

________ is the process in which alum particles are deposited on suspended clay particles of muddy water to make them heavy and settle them rapidly.

• Winnowing

• Threshing

• Loading

• Sedimentation

The paneer is separated by filtering the mixture to a ______

• Filtration

• Evaporation

• Strainer

• Sedimentation

Choose the incorrect statement.

• Filteration is useful in separating insoluable solute from a solution

• Sedimentation is the process of setling down of heavier particles

• Sieving is the method where wheat flour is removed from husk

• None of the above

Choose correct option.

• The process of conversion of water into its vapour is called condensation

• When the water is removed it is called sedimentation.

• Evaporation is used when a mixture has different components

• The process of conversion of water vapour into its liquid form is called condensation

Sieving is used for

• Separating sand from salt

• Separating grains from husk

• Separating tea from tea powder

• All of the above

The instrument used to separate oil and water.

• Separation Filter

• Separation Funnel

• Filter paper

• Strainer

The method used to separate a mixture of salt and sand in water can be separated by

• Filtration followed by evaporation

• Filtration followed by Condensation

• Sedimentation followed by condensation

• None of the above