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WorksheetsPlastics
Total questions: 15
Worksheet time: 15mins
Synthetic plastics are derived from a carbon based raw materials. Identify these raw material.
Wood pulp, starch and plant fibres
Bauxite, alumina and oxides
Crude oil, coal and gas products
Acid free chemicals
Plastics are chemically bonded from small molecules. What is the name of the small molecule that forms the basis of a polymer?
Minime
Polymer
Singlimer
Monomer
Choose suitable materials for the clear plastic windows in packaging. (3 out of 5)
LDPE
Acrylic
PVC
Cellophane
Acetate
Which of these plastics can be recycled
(2 out of 4)
PET
PP
HDPE
LDPE
Thermoplastics are MORE readily recycled than thermosets
(true or false?)
True
False
Properties of recycled plastics never decline
(true or false?)
True
False
We've produced more plastic in the last 10 years than in the last century.
(true or false?)
True
False
Why is plastic used so much?
it is rigid
it is expensive
it is flexible
it is cheap and versatile
What percentage of trash in the ocean is actually plastic?
90%
75%
100%
45%
This major type of plastic during processing is analagous to an egg
Thermoplastic
Thermoset
Elastomer
How long does it take plastic to degrade?
500-1000 years
150 years
200 years
50 years
__________ means to use something again.
reduce
reuse
recycle
__________ means to make something smaller.
reduce
reuse
recycle
__________ means to use something old to make something new.
reduce
reuse
recycle
Select the correct option from the given statements.
Polymers cannot form fibres
Polymer is a natural substance
Polymers can be both natural and synthetic
Polymer is a synthetic substance
