Plastics are materials that are made in factories and can be formed into almost
any shape. There are about 50 main types of plastic. Most plastics are strong long
lasting and lightweight.
Materials
Glass is a unique substance with many purposes
it is hard to the touch but it is not actually a
solid. Its chemical make up is similar to that of
a liquid. Glass usually allows light to pass through
it. It is easily breakable but it can be treated
to became very strong. It resists most chemical
and can be formed into all kinds of shapes.
Rubber is a substance
that is found in many
products from tyres
to toys. Natural
rubber is made from
the milky sap of
certain plants. The
India rubber plant
is a common
houseplant. Most
of the world’s
natural rubber,
however, comes
from trees with the
scientfic name
Hevea brasilliensis.
Materials Fact File
by Shezalaya Callus
Year 5.3