Olympiad Test: Sorting And Separation Of Materials -2 - Class 6

Two solids are separated by winnowing depending on the:

A mixture of wheat and husk can be separated by:

Mariam is a housewife. She lives in a small town. She has gone to visit her village house. Prior to her departure, she kept her utensils, crockeries, chopper, spoons, etc. under lock and key. She returned home after a few days. She saw that there was deposition of brown colour on her chopper. The cooking pots, spoons, remained the same as they were. Of the crockeries, some are made of metal and some are of non-metals.

Q. What is the name of brown coloured coating on the chopper and knife?

The sequence of steps for separating a mixture of salt, sand and camphor is:

A solution which cannot dissolve more of a given substance at a given temperature is:

Sam’s father prepared paneer from curdled milk. Which method did he use to separate paneer from curdled milk?

Take 10 mL of water in 6 test tubes each and add different samples of substances to each test tube as shown in the given figure. Shake the test tubes vigorously for a couple of seconds and leave them undisturbed. In which of these test tubes, sample substances will remain insoluble in water?
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