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Plastics

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Synthetic plastics are derived from a carbon based raw materials. Identify these raw material.

a)

Wood pulp, starch and plant fibres

b)

Bauxite, alumina and oxides

c)

Crude oil, coal and gas products

d)

Acid free chemicals

2.

Plastics are chemically bonded from small molecules. What is the name of the small molecule that forms the basis of a polymer?

a)

Minime

b)

Polymer

c)

Singlimer

d)

Monomer

3.

Choose suitable materials for the clear plastic windows in packaging. (3 out of 5)

a)

LDPE

b)

Acrylic

c)

PVC

d)

Cellophane

e)

Acetate

4.

Which of these plastics can be recycled

(2 out of 4)

a)

PET

b)

PP

c)

HDPE

d)

LDPE

5.

Thermoplastics are MORE readily recycled than thermosets


(true or false?)

a)

True

b)

False

6.

Properties of recycled plastics never decline


(true or false?)

a)

True

b)

False

7.

We've produced more plastic in the last 10 years than in the last century.


(true or false?)

a)

True

b)

False

8.

Why is plastic used so much?

a)

it is rigid

b)

it is expensive

c)

it is flexible

d)

it is cheap and versatile

9.

What percentage of trash in the ocean is actually plastic?

a)

90%

b)

75%

c)

100%

d)

45%

10.

This major type of plastic during processing is analagous to an egg

a)

Thermoplastic

b)

Thermoset

c)

Elastomer

11.

How long does it take plastic to degrade?

a)

500-1000 years

b)

150 years

c)

200 years

d)

50 years

12.

__________ means to use something again.

a)

reduce

b)

reuse

c)

recycle

13.

__________ means to make something smaller.

a)

reduce

b)

reuse

c)

recycle

14.

__________ means to use something old to make something new.

a)

reduce

b)

reuse

c)

recycle

15.

Select the correct option from the given statements.

a)

Polymers cannot form fibres

b)

Polymer is a natural substance

c)

Polymers can be both natural and synthetic

d)

Polymer is a synthetic substance