Mastering Handpicking

Using a centrifuge to separate blood components.

Using a sieve to separate sand from water.

Using a magnet to separate iron filings from a mixture.

Sorting different types of grains from a bag of mixed rice. (correct)

Removing dirt and debris from a pile of leaves. (correct)

Separating different sizes of pebbles from a pile.

Sorting different colored candies from a bag.

Picking out bones from a plate of cooked fish.

It is a mechanical method.

It can only be used to separate solid mixtures.

It is a time-consuming process. (correct)

It requires the use of chemicals.