Mixtures and Solutions Quiz

What is a mixture?

• A single substance

• A combination of substances that keep their identities

• A chemical reaction

• A combination of substances that lose their identities

Which of the following is an example of a mixture?

• Salt

• Water

• Oxygen

• Cereal and milk

What is a solution?

• A mixture where substances are evenly distributed

• A mixture where substances are unevenly distributed

• A chemical reaction

• A single substance

In a solution of saltwater, what is the solute?

• Salt

• Neither water nor salt

• Both water and salt

• Water

Which method can be used to separate sand from gravel?

• Boiling

• Filtration

• Using a sieve

• Magnetism

How can you separate a mixture of sand and iron filings?

• Filtration

• Boiling

• Using a magnet

• Using a sieve

What physical property is useful for separating a solution of water and sugar?

• Color

• Size

• Boiling point

• Magnetism

What happens to water when you boil a solution of water and sugar?

• It becomes solid

• It mixes with sugar

• It turns into ice

• It evaporates

What is the first step to separate a mixture of sand, salt, and water?

• Adding more water

• Boiling the mixture

• Using a magnet

• Filtration to remove sand

What is the final step to separate salt from water?

• Adding more salt

• Boiling the water

• Using a magnet

• Using a sieve