Done by Creative group from Umm Hakim school for girls. Under supervision of AL-Bairaq

1. creative
Dana seedSara ALsulaiti
Fatima TalalRoudha ALnesf

2. • Introduction
• Activity 1: Changing Polymer Pellets
• Activity 2: Hunting for Polymer Products
• Activity 3: Comparing the Viscosity of
Liquids
• Activity 4: Testing the Strength of
Different Polymer Films
• Design Project: Designing a Humidity
Sensor

3. 

4.  Objective:
 1-compare the appearance and mass of polymer pellets before
and after soaking them in plain water.
 2-comparing the mass of polymers pellets before and after
soaking in saltwater
 Procedure:
 Part A:
 1-We Prepare 2 samples of polymers pellets polyacrylamide
 2- we added 10 ml of plain water for each beaker

5. 
polyacrylamide
In water In salted water
10kg 12kg 10kg 9.5kg
Results:
1-When soak the polymers in plain water
it absolved the water and the weight
increased.
2-When soak the polymers in salted
water it released the water and the
weight decreased.
Conclusion:
Polyacrylamide pellets have ability to

6. 
Objective:
1-list in the data table all the products in
the room that we think that’s its made of
polymer.
Procedure:
2-we classified the polymer's whether the
are synthetic or natural.
3-we described the physical properties
such as strength, flexibility, and texture, of

7. 

8. Objective:
to compared the viscosity of 3 liquids
Procedure:
to compared the viscosity of 3 liquids
having different molecular weights the
three liquids are(methanol .ethylene glycol
, glycerol )

9. 
Results:
1-we observed that molecular
weight affect the viscosity of a
liquid.
2-glycerol has got the highest
viscosity while methanol has
the lowest viscosity.
Conclusion:
As the molecular weight
increased the viscosity

10. 
Objective:
1-cast different polymer solution to make films
that vary in strength.
2-to discover factors that affect the ease of
casting polymer solutions.

11. Procedure:
Part A:*we dispense the poly(vinyl acetate)solution
from the pipette onto the slide
*we used 3 different molecular weight of the poly vinyl
acetate (PVAC 100000,PVAC 170000 ,PVAC 260000)
*then we used razor blade to peel off carefully.
Part B:*we tested the tensile(stretching) strength of
the polymer films we made in part A.
*we attached two paperclips to a weight then we hang
the film with binder clip and we measured the length

12. Results:
The PVAC 260000 has the highest tensile
strength while the PVAC 100000 has the
lowest tensile strength .
Conclusion:
As the molecular weight increases the tensile
strength increase .

13. 
Objective:
1-to design and test the efficiency of different humidity
sensor.
Procedure:
Into vial ,we added first the polymer poly vinyl acetate
100000, cobalt chloride, solvent.
Then we tested the sensor by exposing it to humid
and dry condition

14. 
Results:
The humidity sensor change in
color from blue to pink in humid
condition with in 10 min
Conclusion
Poly vinyl acetate can be used as a
humidity sensor due to its ability to
absorb water

15. 
 Our aim is to:

16. 
Suitable hanger
hypothesis:

17. 
The materials we will use :
(plastic waste )
1- old markers
2-old hanger
3-pens
(4-some decoration( wool
Suitable hanger

18. 
Suitable hanger

19. 
Suitable hanger
our
Recommendations:

20. 
Conclusions
(overall )

21. Many thanks to my teachers, school and AL-
Bairaq team from Center for Advanced
Materials (CAM), Qatar University for
supporting us during our journey with a AL-
Bairaq.
Also, I would like to thank the sponsors
UNESCO, Qatar National Commission, Ras Gas
and Shell.
Acknowledgment