HARD
6th CBSE
IMPORTANT
Earn 100

Take some muddy water of equal quantity in two beakers—A and B. Filter both of them separately. To the beaker A, add a few crystals of alum and leave the beaker B as it is. Leave the beaker undisturbed for some time. Do you notice any difference in the two beakers? If yes, what is the process that took place? Where is this method applied on a commercial scale?

Important Questions on Separation of Substances

MEDIUM
6th CBSE
IMPORTANT
Give an example of a solid solution.
HARD
6th CBSE
IMPORTANT
Yesterday you and a couple of your friends threw some solid substances, such as a few seeds(it is lighter than water), sand, salt, and iron filings into buckets filled with water. You were not aware that these substances were part of some materials that your father needed for a project at work. Now the substances are all mixed in the water. When your father found out about this he was not happy. He wants you to separate all the components. Design the procedure to recover all the substances.
HARD
6th CBSE
IMPORTANT
Salt and chalk are mixed together in water. How would you separate them into dry salt and dry chalk dust?
MEDIUM
6th CBSE
IMPORTANT
Solubility of substances helps aquatic animals and plants. How?
MEDIUM
6th CBSE
IMPORTANT
Find out the synonyms of the word ‘separation’.
HARD
6th CBSE
IMPORTANT
Reema saw someone separating wheat bran from flour using a sieve. Reema requested her not to do so. Did she do the right thing? Why or why not?
HARD
6th CBSE
IMPORTANT

Fill in the blanks to complete the mind gaps.

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