Classification of Materials

Which material is a better conductor of electricity?

• Metals
• Ceramics
• Polymers
• I don't know

Semiconductors have structures similar to

• Metals
• Ceramics
• Polymers
• I don't know

Which material is more brittle?

• Metals
• Ceramics
• Polymers
• I don't know

Which material tends to present lower density?

• Metals
• Ceramics
• Polymers
• I don't know

Glasses do not have a crystalline structure, but they belong to the____ group because they share similar properties

• Metals
• Ceramics
• Polymers
• I don't know

We combine two materials to form a ______

• Semiconductor
• Nanomaterial
• Composite
• I don't know

Semiconductors appear as a separate category because:

• They present intermediate electronic properties
• They present a different primary bonding
• They are composed of rare elements
• I don't know

We refer to nanomaterials when the dimensions are:

• millimetres
• femtometres
• nanometres
• I don't know

Nanomaterials are interesting because:

• They are tiny and cute
• They can fit into smaller spaces
• Their properties depend on size 
• I don’t know

Some natural polymers are

• There are no natural polymers
• Cellulose and natural rubber
• Polyethylene and polyvinyl chloride
• I don't know