Crime busters Plastics, Fiber and Hair
Authored by janel luciani
Chemistry
9th Grade
NGSS covered
Used 106+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The plastic sinks in 25% NaCI but floats in saturated NaCI. What is the identity of the plastic?
PC
PP
PS
PVC
LDPE
Tags
NGSS.HS-PS2-6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The plastic sinks, even in saturated NaCI. To a flame, there is no color. What is the identity of the plastic?
PETE
PMMA
PVC
PS
PP
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The plastic floats in distilled water and sinks in 10% NaCI solution. The plastic dissolves in acetone. What is the identity of the plastic?
PP
HDPE
PC
PS
PVC
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following chemicals are necessary in order to have polymerization by condensation?
HCI
H2O
CO2
NaOH
NaOA4
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Which plastic listed below is always clear?
PVC
PETE
HDPE
PP
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which plastic listed below is always clear?
PMMA
PP
HDPE
PVC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the identity of the hair in the image?
Dog
Cat
Human
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