Pure Substances, Mixtures, and Separating Mixtures

If you wanted to make pure drinking water from sea water, what process would you use?

• Filtration

• Distillation

• Evaporation

Tags

NGSS.MS-PS3-3

This technique is based on the differences of the boiling point of the substance in the mixture.

• decantation

• distillation

• filtration

• chromatography

Tags

NGSS.MS-PS1-4

It is a technique in which an insoluble solid is separated from a liquid.

• Filtration

• Sieving

• Decantation

• Use of Magnets

It involves separating a mixture based on different sizes of components.

• Decantation

• Sieving

• Use of Magnets

• Filtration

A material with a particular chemical makeup

• mixture

• pure substance

• hetogeneous

• homogeneous

Coloured water is an example of a

• homogeneous mixture

• heterogeneous mixture

Substances in a mixture can be separated by physical methods.

• TRUE

• FALSE

What is the definition of a substance?

• element

• compound

• mixture of elements

• mixture of compounds and elements

Tags

NGSS.MS-PS1-1

This diagram represents...

• An element

• A molecule

• A compound

• A mixture of elements and compounds

Tags

NGSS.MS-PS1-1

Which of the following is an example of a solution?

• salt in water

• sand and water

• rocks and water

• pebbles and water