Question

Name the method of separation used to separate the following. (3x1=3)

1) Sunflower seeds from a dry flower __________.

2) Water from rice that has been washed __________.

3) Copper sulphate Powder dissolved in water __________.​

Answer 1

Answer:

sshjjsh

ss

ss

Explanation:

Answer 2

Answer:

1 The method of separation used to separate sunflower seeds from their dry flower is called threshing and winnowing.

2 By decantation by tilting the vessel to one side the water from rice that has been washed can be separated.

3 Evaporation is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water – its crystals dissolve in water to form copper sulfate solution. During evaporation, the water evaporates away leaving solid copper sulfate crystals behind.