Properties of Matter

A description of objects that can be measured and observed.

• gas
• mustangs
• physical properties
• melting point

A physical property can be observed with your

• Eyes
• Ears
• Tastes
• All of the above

An example of a physical property is 

• flammability
• acidic
• color
• ability to rust

What causes a change in the state of matter?

• physical properties
• chemical energy
• temperature

What makes mass and weight different?

• Mass is the amount of matter meanwhile weight is expressed in kg, lbs. and g.

• Mass and weight are expressed in g, kg and lbs.

• Mass is the amount of matter meanwhile weight is the force of gravity on an object's mass.

• none of the choices

Vaporization/ evaporation is the change of physical state from _______ to _______.

• gas to liquid

• liquid to gas

• solid to gas

• gas to solid

Dry ice on the kitchen counter has disappeared without a trace. Dry ice skips the liquid phase. It never "melts" instead turns directly into a gas. This is an example of what change of physical state?

• Sublimation

• Melting

• Condensation

• Deposition

If someone sprays perfume in front of the class, why is it that we can smell it even from the back?

• because gas has NO definite shape but takes the container's shape

• because gas has low density

• because gas has NO definite volume

• because gas can diffuse easily

Which of the following is an example of chemical property?

• Electrolysis

• Corrosive

• Combustibility

• all of the choices

Why do you feel cool when you sweat?

• because the sweat takes energy from your skin to escape through evaporation

• because sweat releases energy to your skin that cools you down when it escapes through evaporation

• because sweat takes up energy from the surrounding air causing your skin to loose energy

• all of the choices