Risk Factors/Dx
A farmer needs to separate harvested rice grains from their lightweight outer husks using the wind. Which technique is most appropriate?
WINNOWING
Which method is best for recovering dissolved salt from a saltwater solution so that the salt can be collected as a solid?
EVAPORATION
In a laboratory, a student wants to separate a mixture of iron filings and sulfur powder. Which separaion technique should be used?
USING MAGNET
A mixture of sand and water has been left to stand until the sand settled at the bottom. The clear water is then carefully poured into another container. What is this process called?
DECANTATION
A chef wants to remove large lumps of flour from a mixture to ensure a smooth cake batter. Which method is most effective?
SIEVING
To separate a mixture of pebbles and dried beans of different colors and shapes, which method is the most direct?
PICKING
Which technique should be used to separate coffee grounds from liquid coffee to ensure the beverage is free of solid particles?
FILTRATION
If several plastic balls are floating on the surface of a swimming pool, what is the simplest way to remove them?
SCOOPING
A mixture contains sand, salt, and small iron nails. Which sequence of techniques would successfully separate all three?
MAGNET, FILTRATION, EVAPORATION