Which of the following is NOT an example of matter?

• air

• heat

• smoke

• water vapor

An example of an extensive property of matter is _______.

• temperature

• pressure

• hardness

• mass

All of the following are physical properties of matter except ________.

• mass

• color

• melting point

• ability to rust

• boiling point

Which of the following is NOT a physical property of water?

• Its boiling point is 100 degrees C.

• It is a colorless liquid at room temperature.

• It is composed of hydrogen and oxygen.

• It may react violently with acid.

A substance that forms a vapor is generally in what physical state at room temperature?

• solid

• liquid

• gas

• liquid or solid

What state of matter has a definite volume and takes the shape of its container?

• solid

• liquid

• gas

• Both liquid and gas.

Which state of matter expands when heated and is easy to compress?

• gas

• liquid

• solid

• None of these.

Which of the following is a physical change?

• corrosion

• explosion

• evaporation

• rotting of food

• burning

Which of the following CANNOT be classified as a substance?

• table salt

• air

• nitrogen

• gold

Which of the following is a heterogeneous mixture?

• air

• salt water

• steel

• soil

• vinegar from the grocery store