You've learnt about different materials - Rubber, plastic, paper, glass, ceramic, fabric.
Now, for some extra knowledge, let me introduce you to a relatively new high-tech material called carbon fiber.
Although carbon fiber is very strong and light, it is expensive.
Things that can be made of carbon fiber includes:
Bicycles
Tennis racquets
Supercars
F1 cars
Fishing rods
Parts of the aeroplane
laptop
phone casing
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