Answer:

3. What material remains in the filter cloth or paper when filtering is used to separate mixtures?

• The solid which collects in the filter paper is called the residue. The clear liquid which passes through the filter paper is called the filtrate

4. What material passes through a hole of a strainer when sieving is used to separate mixtures?

• Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger particles or impurities remain on the sieve. For example, in a flour mill, impurities like husk and stones are removed from wheat before grinding it.

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