4. Sieving allows the smaller particles to pass through the holes of the sieve while the bigger particles or impurities remain on the sieve

5. Sieving is the method of separating(both solid) particles of different sizes. Filtration is the method of separating a solid from a liquid.

Answer:

4. The material that passes through a hole of a strainer when seiving, are liqyid substances or any particles that has a very small size

5. The difference of sieving and filtering is in sieving, you use a strainer and most likly sift materials and in filtering or filtration, you use a filter like coffee filter

hope i helped~