wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

6th grade plastics

Total questions: 37

Worksheet time: 34mins

Name
Class
Date
1.
The Greek word that is the root of plastic?
a)
plastikos
b)
plaster
c)
plastekes
d)
plastee
2.
Injection molding.  How do I know I have injected enough plastic into the mold?
a)
it stops moving
b)
it starts oozing out of the mold
c)
the handle is removed
d)
the mold clamp moves
3.
a)
temperature gauge
b)
thermostat
c)
nozzle
d)
handle
4.
What are some advantages of plastics?
a)
Cheaper to manufacture 
b)
Stronger than similar products made from natural material
c)
Often better quality 
d)
All of the above
5.
a)
heater
b)
frame
c)
switch
d)
vacuum table
6.
a)
handle
b)
plunger
c)
nozzle
d)
thermostat
7.
There are two types of plastic.
a)
True
b)
False
8.
Melamine is used for making
a)
kitchenware.
b)
football helmets.
c)
pipes for plumbing.
d)
all of them.
9.
Thermosets cannot be remolded.
a)
True
b)
False
10.
Gutta Percha comes from what?
a)
a gutta percha tree
b)
a gutta percha plant
c)
a maple tree
d)
silly putty
11.
a)
alignment screw
b)
heater block
c)
handle
d)
plunger
12.
Vacuum forming: Where do you place the molds?
a)
in the frame
b)
on the vacuum table
c)
on the heater block
d)
by the switch
13.
a)
nozzle
b)
plunger
c)
alignment screw
d)
mold clamp
14.
Vacuum forming: How long do you hold the switch in the vacuum position?
a)
1 second
b)
2 seconds
c)
3 seconds
d)
4 seconds
15.
a)
switch 
b)
heater
c)
frame
d)
vacuum table
16.
Injection molding: What part holds the mold in place?
a)
plunger
b)
alignment screw
c)
mold clamp
d)
handle
17.
Vacuum forming: how long do you heat the plastic?
a)
until it is soft in the corners
b)
until it starts to sag
c)
until the teacher tells you
d)
30 seconds
18.
injection molding: what temperature is the plastic before injection?
a)
250
b)
350
c)
300
d)
450
19.
The plastic that is sometimes used for dishes.
a)
phenolic
b)
polymer
c)
melanoma
d)
melamine
20.
a)
thermometer
b)
thermoplastic
c)
thermostat
d)
temperature gauge
21.
a)
heater block
b)
mold clamp
c)
alignment screw 
d)
handle
22.
The plastic that can be recycled
a)
polymer
b)
thermoplastic
c)
thermoset
d)
phenolic
23.
A huge molecule made of many smaller molecules is
a)
a monomer
b)
a polymer
c)
a monstomer
d)
a whatchamacallit
24.
The plastic that can only be formed once
a)
thermoset
b)
polystyrene
c)
thermoplastic
d)
polymer
25.
a)
nozzle 
b)
alignment screw
c)
heater block
d)
mold clamp
26.
A plastic that can take hit after hit and still be strong
a)
thermoplastic
b)
polystyrene
c)
thermometer
d)
phenolics
27.
We compared a hardboiled egg to what?
a)
thermoplastic
b)
polystyrene
c)
thermoset
d)
polymer
28.
a)
frame
b)
heater
c)
vacuum table
d)
switch
29.
A styrofoam cup is an example of
a)
gutta percha
b)
polystyrene
c)
phenolics
d)
melamine
30.
The test will consist of 25 to 30 questions and will be mostly multiple choice.
a)
true
b)
false
31.

Which process is used to create hollow plastic objects?

a)

Injection molding

b)

Blow molding

c)

Compression molding

d)

Vacuum forming

32.

What is the main difference between thermoplastics and thermosets?

a)

Thermosets are always transparent

b)

Thermoplastics can be remolded, thermosets cannot

c)

Thermoplastics are made from natural materials

d)

Thermosets are softer

33.

Which plastic is commonly used for making water bottles?

a)

Phenolic

b)

Polystyrene

c)

Melamine

d)

Polyethylene terephthalate (PET)

34.

Which process is most suitable for producing large quantities of identical plastic parts?

a)

Blow molding

b)

Compression molding

c)

Vacuum forming

d)

Injection molding

35.

What property makes thermoplastics ideal for recycling?

a)

They are always transparent

b)

They are made from natural materials

c)

They can be softened and reshaped multiple times

d)

They are biodegradable

36.

What is a key characteristic of thermosetting plastics?

a)

They can be melted and reshaped repeatedly

b)

They are always flexible

c)

They harden permanently after being heated

d)

They dissolve in water

37.

What is the main advantage of using injection molding for plastic production?

a)

It requires no heating

b)

It uses only natural materials

c)

It allows for rapid mass production

d)

It produces unique shapes every time

Similar Resources on Wayground

Topic 4 Waves - Vocab Practice

34 questions

Topic 4 Waves - Vocab Practice

quiz

Worksheet

•

7th - 9th Grade

Electronics Quiz

36 questions

Electronics Quiz

quiz

Worksheet

•

6th Grade

FACS Final Exam Review

37 questions

FACS Final Exam Review

quiz

Worksheet

•

6th - 8th Grade

DVA31064 CH3: Vehicle Ignition System

34 questions

DVA31064 CH3: Vehicle Ignition System

quiz

Worksheet

•

1st - 6th Grade

G6 First Quarter Reviewer

35 questions

G6 First Quarter Reviewer

quiz

Worksheet

•

6th Grade

Heat Transfer, Local Winds, & Global Winds

39 questions

Heat Transfer, Local Winds, & Global Winds

quiz

Worksheet

•

6th Grade

Servsafe Ch.5 Receiving and Storage

33 questions

Servsafe Ch.5 Receiving and Storage

quiz

Worksheet

•

6th - 12th Grade

5th Six Weeks Quizizz

35 questions

5th Six Weeks Quizizz

quiz

Worksheet

•

6th Grade