Metal Alloys

Airplanes are made of pure aluminium.

• True

• False

Engineers chose _____ density metals for airplane bodies.

A mixture of metals is called an ______ .

Many alloys are softer than the elements that are in them.

• True

• False

Steels are alloys of _____.

In steel, iron is mixed with small amounts of non-metal, _______ .

• Copper

• Carbon

• Diamonds

• Wood

In a pure metal, the particles are arranged in _____.

Tags

NGSS.MS-PS1-1

Pure iron is _________________ .

• soft and weak

• hard and stong

• bendy and brittle

Bronze is an alloy of copper and _____.

• Steel

• Iron

• Tin

• Carbon

Bronze has high friction with other metals.

• True

• False