Question

Fill up the blanks
(a) The method of separating seeds of paddy from its stalks is called ________.
(b) When milk, cooled after boiling, is poured onto a piece of cloth the cream (malai) is left behind on it. This process of separating cream from milk is an example of _________.
(c) Salt is obtained from sea water by the process of __________.
(d) Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called _________.

Answer 1

(a) The method of separating seeds of paddy from its stalks is called __threshing__.
(b) When milk, cooled after boiling, is poured on a piece of cloth the cream (malai) is left behind on it. This process of separating cream from milk is an example of __filtration__.
(c) Salt is obtained from sea water by the process of __evaporation__.
(d) Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called __decantation__.