Where does plastic come from?
Oil
Where does fibre come from?
Cotton
Man-made world or nature-made world?
Man-made world
What is it made of?
Glass
Where does paper come from?
Wood
Where does metal come from?
Rocks
Who invented paper?
Cai Lun
Where does rubber come from?
Rubber tree
What is it made of?
Fibre
What is it made of?
Metal
What is it made of?
Wood
What is it made of?
Paper
Man-made world or nature-made world?
Nature-made world?
What is it made of?
Concrete
What is it made of?
Rubber
Where does glass come from?
Sand