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- 1. Multiple Choice
Which of the methods are a part of purifying water
Sedimentation
Decantation
Filtration
All of the above
- 2. Multiple Choice
In which solution no more solvent can be dissolved
Unsaturated
Saturated
Supersaturated
- 3. Multiple Choice
Which cannot be mixed with water
Oil
Salt
Sugar
- 4. Multiple Choice
The process of settling down of particles of a solid in a liquid is
Sublimation
Sedimentation
Filtration
Decantation
- 5. Multiple Choice
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
- 6. Multiple Choice
what means to cut the crop from the field?
Threshing
Winnowing
Harvesting
Sieving
- 7. Multiple Choice
Filtration can be used to separate...an insoluble solid from a solutiona soluble solid from a solutiona dissolved solid from a solution - 8. Multiple Choice
What is winnowing
blow a current of air through (grain) in order to remove the chaff.
a separating process that is used to remove particles of insoluble or undissolved material from a liquid, usually by using a barrier with small to medium-sized holes.
- 9. Multiple Choice
What is handpicking
substances in a mixture can be separated by just picking them out with the help of hand from the mixture
a separating process that is used to remove particles of insoluble or undissolved material from a liquid
- 10. Multiple Choice
What is Thersing
separate grain from (corn or other crops), typically with a flail or by the action of a revolving mechanism.
a separating process that is used to remove particles of insoluble or undissolved material from a liquid
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