Sieving and Handpicking

_________is a method used to separate mixtures by size, using a tool with small holes.

What type of materials does handpicking work best for?

• a) Invisible particles

• b) Large, easy-to-see items

• c) Liquids

• d) Gases

Which of the following is NOT a use of sieving?

• a) Removing impurities from grains

• b) Separating flour from lumps

• c) Separating stones from rice

• d) Removing sand from gravel

Which method is better for separating small particles?

• a) Handpicking

• b) Boiling

• c) Freezing

• d) Sieving

What is an example of a situation where sieving would be used?

• a) Picking weeds from a garden

• b) Removing stones from a field

• c) Separating sand from dirt

• d) Picking fruit from trees

______ is a method where unwanted items are removed manually from a mixture, usually based on their size and visibility.

Handpicking is effective for separating large, visible particles.

• True
• False