Separation Techniques Quiz

Metal and non-metal objects can be separated by using a __________.

• filter

• magnet

• sieve

• water

How will you separate mixture of metal and nonmetal objects?

• by decantation

• by winnowing

• by using a magnet

• by evaporation

Needle in sawdust can be separated by means of ______________.

• decantation

• magnetic separation

• filtration

• sifting

How will you separate mixture of staple wire and chalk powder?

• by decantation

• by winnowing

• by using a magnet

• by evaporation

Mrs. Cruz's needle was mixed with bits of paper. How will she separate the needle safely from the bits of paper?

• by decantation

• by winnowing

• by using a magnet

• by evaporation

How will you separate paper clips and thumbtacks from flour?

• by using magnet

• by using a sieve

• by using a filter paper

• by using filter paper

Which of the following best describes a magnet when used to separate mixtures?

• It can separate metals from nonmetals.

• It can separate nonmetals objects.

• It can separate larger particles.

• It can separate smaller particles.

__________ when mixed with non-metals, could be separated by magnet.

• rubber

• plastic

• water

• metals

Metals which are made up of ______________ are easily attracted to the magnet.

• alloy, nickel or cobalt

• paint, water or powder

• salt, rubber or plastic

• gold, ruby, diamond

There is no ______________________ involved in the separation of components in magnetism.

• physical reaction

• mechanical reaction

• chemical reaction

• acid reaction