Macmillan McGraw-Hill Science

While sitting in your house, you notice that there are particles of dust floating in the air. These particles of dust that are suspended in the air are an example of a(n) ____.

• solid

• solution

• aerosol

• gas

The thing that dissolves another in a solution

Which of the following is NOT needed to build a circuit?

• A light bulb

• A power source (battery)

• Wires

• A string of yarn

Mixtures that have parts that are not uniformly mixed together are called...

• homogeneous mixtures.

• heterogeneous mixtures.

You pour two different types of cereal into one bowl. Is this an example of a mixture or a solution?

• mixture

• solution

A ____ is a physical combination of two or more substances.

• suspension

• mixture

• matter

• solution

Why should you never put a metal fork into an outlet?

• It is very safe to put a metal fork into an outlet.

• Metal conducts electricity, so electricity can flow through the fork.

A mixture where particles don’t settle (ex. Foam, cream, gel)

A mixture where you can see each parts

A solution of metal and metal