Done by Qatar group at Albayan School. Under supervision from Al-Bairaq

1. AL-Bairaq
I am Discovering Materials 13th Cycle
Polymers
Qatar
Amna AlAbduljabbar
Rouda Alkhulaifi
Rawan Alkuwari

2. Outline
• 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
• Product Idea: No more fear its safe for kids

3. WHAT ARE
POLYMERS?
• Polymers are made up of
many molecules all strung
together to form really long
chains.
• Types of polymers:
- Polyethylene: In packaging
(plastic bags)
- Polyacrylamide: Water
treatment - Screen printing
- Polypropylene: Carpet - Ropes

4. Activities 1: Changing
Polymer Pellets
• How the polymer pellets work?
• In this experiment we took two
samples of 0.5g of polyacrylamide and
labeled them as (A) and (B). Then we
added water to both of them, and they
absorbed it and became bigger. After
that, we added another dose of water
to (A) and salt-water to (B). Because of
that (A) became even bigger, and (B)
became smaller.

5. Activities 1: Changing Polymer Pellets
Sample A Sample B
Mass 0.50 g 0.50g
Observation Dry small pellets Dry small pellets
Mass after adding 10 g of
water
8.69g 8.67g
Observation It absorbed the water ,and it
became bigger in size.
It absorbed the water ,and it
became bigger in size.
Mass after adding water &
salt-water
Water, 20.17g Salt water, 17.11g
Observation It became even bigger It became smaller because it
take out the water
• When you add tap water it absorbs and when you add salt
water it takes out the water.

6. Activities 2: Hunting for Polymer Products
• To recognize the
polymers in our
everyday lives and find
examples to observe
some properties of
polymers.
• We searched for
different types of
polymers, and we
learned that there is 2
main types of
polymers, synthetic and
natural and we found
that every polymers
have different uses that
its important in our life.

7. Activities 2: Hunting for Polymer Products
•We learned about synthetic and natural polymers.
synthetic natural
Plastic (Bottles) Silk
Bulletproof glass Cotton
Nylon Wool
Windows for cars Natural Rubber

8. Activities 3:
Comparing the
Viscosity of Liquids
• to understand the meaning of
viscosity and explore the effect
of polymer molecular weight and
concentration on the viscosity of
polymer solutions.
• In this experiment we compared
3 liquids which are different in
viscosity.

9. Activities 3: Comparing the Viscosity of
Liquids
Name of liquid Chemical formula Molecular weight
Methanol CH3OH 32 g/mol
Ethylene glycol HOCH2CH2OH 62 g/mol
Glycerol HOCH2CH2CH(OH)CH2OH 92 g/mol
We found that the higher molecular weight is the higher
viscosity and the lowest molecular weight is the lowest
molecular.

10. Activities 4: Testing the Strength
of Different Polymer Films
• Testing and Comparing the stretch
ability and tensile strength of polymer.
• We took 3 kinds of the same polymer
and tied it on the stand and we took a
measure after every minute of
polymer length until they gradually
cut down

11. Activities 4: Testing the Strength of
Different Polymer Films
0.1 cut off easily because the strength ability isn’t strong and
0.10 didn’t cut off easily because the strength ability is strong.
0
5
10
15
20
25
30
35
1 2 3 4 5 6 7 8 9 10
L(0.1) L(0.5) L(0.10)

12. Design Project Designing a Humidity Sensor
•Design a humidity sensor made of a polymer film that
changes color as the moisture level in its environment
changes.
•On this experiment we want to figure out the
humidity sensor.

13. Design Project Designing a Humidity
Sensor
•We found that after putting polymer film in dry air the
film changed colors to blue and then putting the film
in boiling water if the film turns to pink fast.
•A good humidity sensor if it changes to pink indicating
presence of water and to blue indicating absence of
water.

14. Final Project:
No more fear it’s safe for kids
Many Kids often chew or eat their school supplies and toys that causes serious diseases such
as cancer. covering school supplies and toys by using egg shell that have a lot of calcium and
protein.
This project will protect the kids and its 100% safe for them. Qatar is consuming eggs in large
quantitie. The plastic toys and school supplies have dangerous materials
General Child cancers account for about 4% of all cancer cases in Qatar.
We have decided to choose this project because it is of great importance to maintain the
health of children from dangerous diseases and cancer that leads to death.
We will cover plastic materials to reduce the impact of diseases
All countries in the world must recycle eggshells because of its great importance
Waste should be set up near shops to recycle egg shells.

15. No more fear it’s safe for kids
Hypothesis
We confirm the success of this
experiment and will be safer for
children 100% and do not want to
risk the lives of children

16. No more fear it’s safe for kids
Materials
Egg Shell
Corn Starch
Food Coloring
Kids Toys
Water

17. STEP 1:
We boiled the egg shell for 10 minute to remove all the bad bacteria
and then we put the egg shell in the oven for 15 minutes then, we
blended the egg shell in the blender To become powder.
STEP 2:
Secondly, we added 15 table spoon of corn flour and add 1 cup of
water and we added 20 egg shell and we mixed all the materials
together then we added food coloring.
No more gear it’s safe for kids
Methods

18. No more fear it’s safe for kids
Results
BENEFITS:
Protect children from cancer and serious diseases. And it is 100% safe.
USES:
You can use this product anywhere to protect the children mostly in public
places.
FINANCE:
- Egg: 15QR
- Corn flour: 6QR
- Toys: 20QR-50QR
- Food coloring: 12QR
(Total:58QR)
We find that the total cost is very low and its usefulness is many and we
find a profit after that.

19. No more fear it’s safe for kids
Recommendations
We recommend putting it in children's
toys, school supplies and breast feeding
tools and in kids area

20. No more fear it’s safe for kids
Conclusions
We conclude that eggshell is safe for children 100% Calcium is
the main element responsible for the building of bones,
muscles and joints in children, that is, it stands behind the
healthy and integrated growth of their bodies, and therefore
any deficiency in them directly affects their growth and result
in many health problems such as deformities and congenital
defects, Teeth, weak nails, and short stature problems.

21. Acknowledgment
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, and Shell.