Unit 2 Assignment

Front

What is a property of metals that allows them to be drawn into wires?

Back

Ductility

Front

What is the term for the ability of a substance to reflect light?

Back

Luster

Front

Which property of metals describes their ability to be hammered into thin sheets?

Back

Malleability

Front

What is the opposite of ductile in terms of material properties?

Back

Brittle

Front

What is a physical change? Give an example.

Back

A physical change is a change that affects one or more physical properties of a substance. Example: an ice cube melting.

Front

Are metals typically dull in appearance?

Back

No, metals are usually shiny and have luster.

Front

What happens to the properties of a substance during a physical change?

Back

The properties may change, but the substance itself remains the same.

Front

What is the term for a material that does not conduct electricity well?

Back

Insulator

Front

What is an example of a chemical change?

Back

Iron rusting or charcoal burning.

Front

What is the term for materials that can conduct electricity under certain conditions?

Back

Semiconductors