| Domanda | Risposta | |||
|---|---|---|---|---|
|
a type of steel not needing a protective coating, as it doesn't rust
|
||||
|
a metal used to make brass, and in galvanised coatings on steel
|
||||
|
thr predominant metal in steel
|
||||
|
an alloy made from copper and tin
|
||||
|
a dense, poisonous metal
|
||||
|
timber from deciduous trees
|
||||
|
rocks from which metals can be extracted
|
||||
|
timber from pine trees
|
||||
|
combination of materials
|
||||
|
rare or complex
|
||||
|
iron and steel
|
||||
|
minerals transformed by heat
|
||||
|
mixture of metals
|
||||
|
materials that are not metal
|
||||
|
plastic materials
|
||||
|
examples of metallic materials are iron (Fe) and copper (Cu)
|
||||
|
examples of non-metallic materials are carbon (C) and silicon (Si)
|
||||
|
those that contain iron
|
||||
|
those that do not contain iron
|
||||