Quiz on Physical and Chemical Changes

What is a mixture?

• A single pure substance

• A new chemical formed

• Two or more substances combined but not chemically joined

• A liquid turning to gas

Which of these is a mixture?

• Salt

• Sugar

• Salad

• Water

In a mixture, the substances:

• Keep their own properties

• Always change color

• Form a new substance

• Disappear

Which of these is NOT a mixture?

• Lemonade

• Trail mix

• Salt water

• Pure gold

Which is an example of a mixture you can separate easily?

• Salt water

• Trail mix

• Air

• Vinegar

Which tool could help separate sand from water?

• Magnet

• Filter

• Thermometer

• Ruler

Which tool could help separate iron filings from sand?

• Filter

• Magnet

• Sieve

• Balance scale

What is a solution?

• A mixture where substances stay separate

• A mixture where one substance dissolves in another

• A mixture of solids only

• A pure substance

Salt dissolved in water is a:

• Chemical change

• Physical change

• Solution

• New substance

In a solution of sugar water, what is the solute?

• Water

• Sugar

• Both

• Neither