Page 22 - E-Science Prim.6 2024-2025 U2_Handy
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4- Sometimes, new materials are created
by mixing materials at high temperature.
a) Shrink-wrap: is created when we add heat to plastic to
shrink it.
b) Glass: is made from a mixture of sand with small amount of
limestone and soda ash (sodium carbonate).
It is made of a mixture of sand, limestone and soda ash “sodium carbonate”
Mixture is It melts and The glass
heated in hot changes into cools and
becomes hard
furnace glass
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First Term
