U3L3 Test Review

Which of the following is a property that you can see?

• color

• hardness

• brittleness

• all of the above

The property reflectivity describes how

• easily a material can get scratched

• much light bounces off a material

• difficult it is to shape an object

• all of the above

A difference between copper and plastic is that copper has a much higher

• brittleness

• solubility

• reflectivity

• electrical conductivity

Which of the following properties is an example of a substance changing into a new substance?

• wood that is burned

• gold that is scratched

• iron pyrite that is broken

• sugar that is dissolved

Solubility depends on

• the substance being dissolved and not the substance it dissolved in.

• not the substance being dissolved but the substance it is dissolved in.

• the substance being dissolved and the substance it is dissolved in.

• not the substance being dissolved and not the substance it is dissolved in.

A substance's ________________ is whether it can be shaped or not.

• hardness

• conductivity

• brittleness

• reflectivity

How can you test the hardness of a material?

• bend it with your hands

• scratch it with a diamond

• flatten it with a hammer

• dissolve it in a substance

A property that describes how well a substance allows electricity to pass through it.

• thermal conductivity

• electrical conductivity

• solubility

A property that describes whether a substance can dissolve in another substance.

• electrical conductivity

• thermal conductivity

• solubility

A property that describes how well a substance allows heat to pass through it.

• electrical conductivity

• thermal conductivity

• solubility