What are these aeroplanes made of?
They're made of paper.
What material is this?
glass
What are these bottle caps made of?
They're made of metal.
What's this house made of?
It's made of brick.
What's this jar made of?
It's made of glass.
What's this glass made of?
It's made of glass
What material is this?
plastic
What's this tin made of?
It's made of metal.
What's this tube made of?
It's made of metal. (the top is made of plastic.)
What material is this?
wood
What material is this?
metal
What's this bag made of?
It's made of plastic.
What material is this?
brick
What material is this?
metal (aluminium)
What are these cans made of?
They're made of metal. (aluminium)
What material is this?
paper
What's this wall made of?
It's made of brick.
What's this box made of?
It's made of wood.
What's this bowl made of?
It's made of wood.