As I am housekeeping my files and documents, I came across the script and Powerpoint slides of the Green Technology Show 2019. I wish to share the files here for my blog viewers.
Here is the script Title: Love Environment, Appreciate Technology
TH SHOW 2019
31 JULY 2019 ,RABU, 14 MINIT (3)
TEMA : TENAGA,PENGURUSAN SISA DAN AIR SISA,ICT
2 students are
playing with Arduino set (from outside to the center of the stage) where
FARAH is busy experimenting the water
solution to test its pH.
1 minute: AYSA and LIYANA takes their Arduino wheel and
rolls it
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NENA
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Hi Farah,
what are you busy doing(trying to touch the set of titration)
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FARAH
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(SLAP
LIYANA’S HAND) HEY! Don’t touch it! It’s my assignment by Prof FAZILAH our Ecology supervisor. By the way, what are you doing in the lab? You are not allowed to play in the lab, you might get hurt.
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AYSA
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PPSSS…. Sorry
Farah. We are designing and developing a robotic project from Arduino.
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FARAH
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What do you
mean by ‘a robot’. This (holding the robot)…does not looks like a robot to me and with what? Ardu what?
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NENA
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(takes the
robot)
Its Arduino
Uno. Do you know exactly what is Arduino Uno?
*comes to the
front and talks to the audience*
Arduino Uno
is a popular micro controller which is a platform for physical performing
circuit board which is a micro controller (shows a giant Micro Controller) and
a piece of software or IDE that runs on a computer. Write the code and upload
the computer code to the physical board.
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AYSA
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Oh BTW Farah
What are you doing with all the apparatus?
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FARAH
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Oh! It’s an
environmental things.
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NENA
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What do you
mean by environmental things?
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FARAH
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As you can
see, I have some water samples from various resources like this one. I got it
from Kati river, Buntong river and Perak river. I need to test the pH of each
of the sample.
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AYSA
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Friends out
there? Do you know what the definition of pH is?
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NENA
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(SHOWS A
LARGE PH SCALE)
Ph is a
measurement of acidity or alkalinity of water substance. Ph stands for
Potential of Hydrogen which is a measurement of the hydrogen ion concentration is from 1 to 14 with 7 at the middle point. It is not a linear scale like a meter ruler or a thermometer. 1 being the most acidic, where 14
being the most alkaline. These values decrease as they approach the neutral point.
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AYSA
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Hey, Farah,
so what’s with those cabbages? Are you going to eat them? RAW?
(AYSA N NENA
giggling)
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FARAH
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No….you
two…(tunduk muka staring at them both with blinking eyes)
I am
practicing (confidently: body straight) GREEN CHEMISTRY in the laboratory
Do
you know what is Green chemistry??
Both
(shake their heads)
Green
Chemistry is the practice of designing products and processes that minimize or eliminate the use and generation of hazardous substances.
By using the
red cabbage, it is possible to determine the pH of a solution based on the
color it turns the anthocyanin pigments in red cabbage juice. The colour of the juice changes in response to changes in its hydrogen ion concentration.
Pink- acidic, blue- alkaline, but if the colour turns clear…………………….it means that the solution is … NEUTRAL! (Everyone; Farah, Aysa n Nena)
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AYSA
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OH waits
FARAH! Let me check on my magic bag. (taking a box of arduino-pH sensor set
from her bag)
My mom asked
me to build a pH sensor for her hydroponics and aquaponics. I made one for her, let me try to get the pH reading for your river water.
There u go!
So we need a
pH sensor, a BNC connector and Arduino to measure the water quality.
And then,
wait in about 1 minutes for the response time and the reading of the pH is
shown in the arduino window.
There! The pH
reading for this sample is 5.7 J
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NENA N FARAH
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Wooowwwwww!!!!
Clap clap
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NENA
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So Farah,
what is your findings? Looking at the data (a big large book of data)
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FARAH
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Most of the
samples show/indicate Ph’s readings lower than 6, which shows acidic’s
properties. Rain and ground water tend to be naturally slightly acidic,
usually no lower than 6 on the ph’s scale. Most plants and animals tolerate
this level of acidity without any problem. By product of air and water
pollution is often a much more acidic environment than normal.
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AYSA
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it’s a bad
thing. The river seems to be acidic. And I can relate that with the pollution
around Ipoh where you took those samples.
The major
cause of water pollution is due to sewage,
garbage and liquid waste of households, agricultural lands and factories when
they are discharged into lakes and rivers. These wastes contain harmful chemicals and toxins
which make the water poisonous for aquatic animals and plants.
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NENA
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So humans are
the main cause of water pollution (shake their heads all together).
We should do
something to replenish the water sources cause it can’t replenish itself,
CANT THEY? (ASKED AUDIENCE).
and do u know that WATER SCARCITY IS ONE OF ENVIRONMENTAL ISSUE other
than climate change, deforestation and global warming.
ANNNNDDD.. do
u know that we only have (counting fingers) another 11 years to do that bcos if not, the damage would not be reversible. It Would be IRREVERSIBLE (card on
the word: IRREVERSIBLE)
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FARAH
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Is there
anything that we can do to preserve the clean water?
(everybody is
thinking)
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NENA
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I was
thinking about…..
(AYSA N FARAH
WENT TO THE BACKSTAGE AND BRING THE HEAVY WATER SYSTEM TO THE CENTER OF THE
STAGE)
How we can
reuse the grey water for irrigation, cools zinc rooftop on hot weather which
can prevent water wastage and therefor, recycling the water.
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FARAH
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Btw, what is
GREYWATER?
Is there any
yellow water, black water?
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and continues..... 😅
Here are some snippets from the Powerpoint slides which I kept in Google Doc.
I hope that this sharing will benefit the teachers and student who are planning to participate in Green Technology Show next year
Thank You and Stay Safe
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