Tuesday, 29 August 2017

Chemistry Of Plastic Bags Part 2

Screenshot 2017-08-11 at 9.08.12 AM.png


  1. NH2=Nitrogen + Hydrogen ✘2
  2. C2=Carbon ✘2
  3. C3=Carbon ✘3
  4. CN=Carbon +Nitrogen
  5. CH=Carbon +Hydrogen
  6. HCN= Hydrogen+Carbon+Nitrogen
  7. C2H2=Carbon ✘2 +Hydrogen ✘2
  8. C2H6=Carbon ✘2 + Hydrogen ✘6
  9. NH3=Nitrogen +Hydrogen ✘3


What is plastic?

  • What is plastic
Plastics are moldable and bendable materials, we make other types of plastics
  • What is plastic made of?
John Hyatt chemically combined nitrocellulose with camphor to make plastic called celluloid which is used to make ping pong balls. Baekeland combined formaldehyde and phenol and heated it. He found that when this substance cooled, it hardened to form a strong plastic which we use for making auto parts. Nylon, a plastic, was made by Wallace Caruthers, who mixed adipic acid and diaminohexane monomers  to form long fibers. This is only a few ways plastic is made
  • Give examples of how plastic is used in different ways
Auto parts, Plastic bottles, Plastic bags, Toys, Garbage bags, Tents, Clothing, ziplock bags, Pipes, electric cables, cooking utensils, plumbing tape, disposable gloves and many more.
  • Describe and explain how plastic bags can impact the environment
They are made up of non-biodegradable material which cannot be broken down into simpler substances in the environment and plastic bags can stay there for more than a thousand years, this contaminating soil and water bodies. These plastic bags also enter the food chain and get eaten by animals, which kills them and slowly starts killing the animal kingdom.
What are some alternatives of plastic bags?why do we not use them more?Instead of using plastic bags you can use paper bags and cotton bagsAre plastic bags biodegradable?why/why not? Yes? And also paper bags as well in the matter of weeks they can be recycled but plastic bags can’t because of it being inefficient.


Chemistry Of Plastic Bags - Part 1

Scientific Terms

Atom- The smallest particle of a chemical element that can exist.
Element- Elements are made of one type of atom
E.G Carbon, Oxygen, Iron
Molecule- Molecules are 2 or more atoms chemically bonded together.
-They can be different or the same atom
Compound- Compounds are two or more different elements chemically bonded together.
Monomers- A molecule that can be bonded to other identical molecules to form a polymer.
Polymers- A substance which has a molecular structure built up chiefly or completely from a large number of similar units bonded together, e.g. many synthetic organic materials used as plastics and resins.

What’s its purpose?

What does google say?:Chemists and scientists arrange the elements using the Periodic table. Elements are listed in the table in order of their atomic number. He arranged 63 elements into groups and left gaps in the table because he predicted new elements would be found.
Is google correct?: I know this is correct because it is saying what the book says it's just more detailed and different wording.

What does the book say:Elements are grouped together based on their chemical properties.
Do my answers marry up? Why?:Yes they marry up because they are the exact same thing just one is more detailed and has different words.



Symbol
Element Name
Fact
Where is it found
1
H
Hydrogen
Hydrogen is largely bound in the form of water.
It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen.
2
HE
Helium
In refrigeration technology, liquid helium is used to generate ultra -low temperatures.
Most people guess that we extract helium from the air, but actually we dig it out of the ground.
3
LI
Lithium
Lithium is also used as a treatment for depression.
lithium is usually extracted from lithium minerals that can be found in igneous (Volcanic)
rocks
4
BE
Beryllium
In nuclear power plants, the metal is used - like graphite - as a moderator since it releases neutrons when exposed to alpha particles.
Beryllium is most often found in the minerals beryl and bertrandite. It is found in the Earth's crust and mostly in
igneous
(volcanic) rocks.
5
B
Boron
Boric acid has largely lost its significance due to its lack of antiseptic properties.
Boron can not be found in nature in its elemental form. It is found combined in borax, boric acid, kernite, ulexite, colemanite and borates.
6
C
Carbon
Carbon is the foundation of all living processes.
Carbon is found in abundance in the sun, stars, comets and atmospheres of most planets.
7
N
Nitrogen
Nitrogen makes up 78% of air.
Nitrogen can be found in all living organisms on Earth.
8
O
Oxygen
Oxygen is the basis of all respiratory and combustion  processes.
Oxygen is found in most ores. It can also be found in the air it is what keeps us alive.
9
F
Fluorine
Only a few gases do not react with Fluorine
Fluorine can only be found by mining the most popular countries are China, Mexico and western europe.
10
NE
Neon
100 litres of liquid air only contains 1.8 ml of Neon.
Neon is usually found in the form of a gas with molecules consisting of a single Neon atom.
11
NA
Sodium-
Natrium
Sodium is the sixth-most common element in the earth's crust.
Sodium can not be found freely.
12
MG
Magnesium
Magnesium is the eight most abundant element in the earth's crust.
Magnesium can be found in over 60 minerals some important minerals are dolomite, magnesite, talc and carnallite.
13
AL
Aluminium
Aluminium is the most abundant metal and the third most abundant element.
Aluminium cannot be found as its element,
All of the earth's elements combined is what makes Aluminium.
14
SI
Silicon
Silicon represents the non-living part of nature.
Silicon is found largely as sand, quartz, rock, crystal, amethyst, agate, flint,  jasper and opal.
15
P
Phosphorus
Phosphorus is as soft as wax it glows in the dark and ignites spontaneously in air.
Phosphorus is an element that cannot be found as a natural element, but it is found in many minerals called phosphates.
16
S
Sulphur
Sulphur was already known in Antiquity and is mentioned in the old testament as brimstone.
Sulphur can be found by hot springs and volcanic regions.
17
CL
Chlorine
Chlorine is an aggressive gas that combines with most elements and compounds by chlorination
Chlorine can be found in both the earth's crust and ocean water
18
AR
Argon
Argon makes up 0.934% of our air.
Argon cannot be found if it is not made to make argon. You mix Oxygen and Nitrogen which gives you Argon.
19
K
Kalium
Kalium is the seventh most abundant element in the earth's crust.
Kalium is a very rare object and you can not find it freely in nature
20
CA
Calcium
Calcium is an essential growth factor for plants.
Limestone, gypsum and fluorite

PPDAC APPLICATION FORM

PPDAC
Application

PROBLEM: I wonder if junior students agree/disagree with housing in NZ?
Prediction:We predict three quarters to all of the classes will have proper insulation and heating.

Plan:
  • Survey
Kia ora Parents/Caregivers

We would like you to fill out the following survey for our research, we are currently investigating the living conditions of Rotorua residents.
Please give this survey to your child so they can bring it back to 9 FFL
Thank you

Thinking about where you live now, do you currently,
  1. Rent your home   ⬜

  1. Own your own home (or have a mortgage)  ⬜

  1. Other (please specify):__________________

     2. Do you have any Insulation Please tick,  ⬜Yes  ⬜No
         If yes please specify __________________________

     3. What sort of heating do you have in your house?
          ⬜ Fire                              ⬜Thermal

          ⬜Electric Heater             ⬜ Eco Burner

          ⬜Heat Pump                   ⬜Underground heating

          ⬜Gas                               ⬜Other (please specify):______________

    
         Kind regards, Shayde and Reeko


Data, …..
We have surveyed 30 people half of
which were year 9 and the other half year 10 this is the results:


Questions:
Responses
Fractions
Percentage
Who Owns their Home:
11111 11111 11
12/30
40%
Who Rents their Home:
11111 11111 11111
15/30
50%
OTHER:
11
2/30
6.6%


Questions:
Responses
Fraction
Percentage
Who has insulation?
11111 11111 11111 1111
19/30
63.3%
Who doesn’t have insulation?
11111
1111
9/30
30%