3. Separating mixtures give us different useful products such as salt from
seawater. Which of the following method is commonly used to obtain salt from
seawater?
A. filtration
C. evaporation
B. decantation
D. use of magnets
4. Separating mixtures can be done in different ways. Which of the following
mixtures is best to be separated through hand picking?
A. salt and mongo seeds
C. yellow and green mangoes
B. nails and pins
D. oil and vinegar
5. During summer season, children love to spend their time swimming in the pool.
We cannot avoid impurities like leaves mixed with water in the pool. Which of
the following techniques is best used in removing the leaves from the swimming
pool?
A. filtration
C. decantation
B. evaporation
D. distillation
6. Your mother asked you to cook rice for dinner. You observe the small stones in the
rice grains. What will you do to separate the small stones from the grains of rice?
A. winnowing
C. handpicking
B. filtration
D. decantation
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