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1) Who came up with a revolutionary new idea?
a) woodcutters
b) scientists
c) forestry experts
d) carpenters
2) What screens did the article say the transparent wood could replace?
a) car windscreens
b) cinema screens
c) iPhone screens
d) TV screens
3) What is the name of the university that did this research?
a) Glassland
b) Woodland
c) Disneyland
d) Maryland
4) What did the chemicals the researchers extracted give to the wood?
a) transparency
b) colour
c) volume
d) smell
5) What materials besides glass could the transparent wood replace?
a) optical materials
b) biodegradable materials
c) glassy materials
d) waste materials
6) What kind of wood did the researchers work with?
a) linden
b) cedar
c) pine
d) mahogany
7) For how long did researchers boil the wood?
a) just under 2 hours
b) 2 hours and 22 seconds
c) exactly 2 hours
d) around 2 hours
8) What kind of cells remained after the boiling process?
a) bark cells
b) woody cells
c) colourless cells
d) grainy cells
9) What is wood better at doing than glass against the cold?
a) seeing
b) keeping birds out
c) keeping rain out
d) insulating
10) How thin was the thinnest wood the researchers tested?
a) a micron-and-a-half thin
b) paper thin
c) as thin as a hair
d) 1mm thin
