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PLASTICS

Total questions: 31

Worksheet time: 18mins

Name
Class
Date
1.
Why do you think people use plastic for their products ?
a)
Because it's strong
b)
Because its very cheap and it's easy to make
c)
Because it's expensive
d)
Because it's rare and it's good for the enviorment
2.
What term means "does not break down in the environment"
a)
biodegradeable
b)
non-degradeable
c)
corrosive
d)
biodegenerative
3.
WHAT IS PLASTIC?
a)
Plastics are typically organic polymers of high molecular mass
b)
IS GLASS
c)
IS A KIND OF CHEMYCAL MATERIAL
d)
Materials that can be reshaped (remolded) by applying heat and pressure
4.
HOW DO WE USE PLASTIC MATERIAL?
a)
PLASTICS IN THE HOME/PLASTICS IN THE FOOD INDUSTRY/PLASTICS IN TRANSPORT 
b)
PLASTIC IN CHILDREN
c)
PLASTIC IN  THE HUMAN BODY
d)
PLASTIC IN FOOD 
5.
Why is plastic used so much?
a)
it is rigid.
b)
is is flexible.
c)
it is expensive.
d)
it is cheap and versatile.
6.

Plastics contain ___________________, which are long chains of molecules that manufacturers can mold, cast or force through a die into desired shapes.

a)

pigments

b)

polymers

c)

core walls

d)

chamfers

7.
Tick the correct option about PET bottles
a)
Its full form is poly-ethylene terephthalate
b)
It is bio degradable
c)
it  corrodes easily
d)
All of the above options
8.
Bakelite is an example of
a)
thermosetting plastic
b)
thermoplastic
c)
synthetic fiber
d)
none of the above
9.
Electrical switches are made up of
a)
melamine
b)
bakelite
c)
PVC
d)
polythene
10.

What are the two main categories of plastics?

a)

Thermoplastic and Heat-setting Plastic

b)

Heat-melting Plastic and Thermosetting Plastic

c)

Thermoplastic and Thermosetting Plastic

d)

Hot-melt plastic and Thermosetting Plastic

11.

Which category of plastic melts when you heat it?

a)

Hot-melt Plastic

b)

Thermoplastic

c)

Thermosetting Plastic

d)

Heat-melt Plastic

12.

Which category of plastic does not melt when you heat it?

a)

Thermoplastic

b)

Thermosetting Plastic

c)

Heat-setting Plastic

d)

Hot-melt Plastic

13.

A plastic bag falls into which category of plastic?

a)

Thermoplastic

b)

Thermosetting Plastic

c)

Heat-setting Plastic

d)

Hot-melt Plastic

14.
Thermosets cannot be remoulded
a)
True
b)
False
15.

Select 2 polyester fibres

a)

Polythene

b)

PET

c)

Terylene

d)

Melamine

16.

Name the plastic used for making water pipes

a)

Polythene

b)

PVC

c)

Acrylic

d)

Bakelite

17.

Name the plastic used for non - stick coating

(a)  

18.

Many small unit combine together to form a large unit called (a)  

19.

Cooking pans have plastic handles because

a)

They are light, durable and strong

b)

They are non- reactive

c)

They are poor conductors of heat and electricity

d)

They do not catch fire

20.

Poly + Cot = ______

a)

Polycotton

b)

Polcot

c)

Polycot

d)

Terrycot

21.

Plastics which resists fire and can tolerate heat better than other plastics

a)

Bakelite

b)

Melamine

c)

Polythene

d)

PVC

22.

Which of the following plastics objects can be recycled?

i). Electric socket ii). Polythene bag iii).PVC pipe iv). Ashtray

a)

A and B

b)

B and C

c)

A and D

d)

C and D

23.

The common characteristic properties plastics are

a)

Durable, good conductor of electricity, and non-reactive

b)

Good conductor of heat, light in weight, and good conductor of electricity

c)

Durable, light in weight, and non-reactive

d)

Durable, good conductor of heat, and non-reactive

24.

Uniforms of firemen are made of _______ plastic to make them flame resistant.

a)

Teflon

b)

Melamine

c)

Bakelite

d)

PVC

25.

How are synthetic fibres made

a)

By using plants

b)

By using petrochemicals

c)

By using humans

d)

By using plastics

26.

What is Polyethylene terephthalate (PET) most commonly used for?

a)

water bottles

b)

furniture

c)

utensils

d)

cars

27.

Which of these is the easiest to recycle?

a)
b)
c)
d)
28.

which two of these are a danger to sea-life?

a)
b)
c)
d)
29.

Which is the correct spelling?

a)

polyaeteline

b)

polyethylene

c)

pollyethylene

d)

polyetalene

30.

Why is plastic dangerous for animals?

a)

They can be trapped in plastic things.

b)

They can choke (zakrztusić się) with small plastic pieces and die.

c)

They can eat plastic which fills their stomaches and they die of starvation because they don't feel hungry.

d)

Plastic is not so dangerous for animals.

31.

How much time does it take for a plastic bottle to decompose?

a)

around 450 years

b)

around 50 years

c)

around 200 years

d)

around 5 years

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