Engineering: Reflect and Share

This is my final product

This is my boat testing


The motors do work. However, the problem is fans turn abnormally. This is because I could not correctly drill the hole straight to the motors. I think this is the weakest part of my boat.

Additionally through the electric boat testing, I found that my boat is not stable enough to stand it alone (If I do not hold it by hand, the boat flips over), so I had to hold the head of my product.


Even though I failed to show my boat float it alone, by connecting black and red wires to battery, switch, and motors, I could successfully demonstrate the process of energy transfer ( electrical energy  to kinetic energy).


Unfortunately, this week, I tried to change the battery to solar panels, but I could not have any time to make alternative one. Also, if I had replaced a solar panel in the middle of the project, I would need to remodel my designed boat. Moreover, I could not find any tutorials that explain the way to connect solar panels to switch and motors.

My potential consumers (clients) are children who need toys to play with. I Thought my products could help them to evoke much curiosity such as factors that make boat working. Moreover, this let them closely connects and be interest in the science world!


Later, If I have another chance to improve my boat, I will place two sinkers on the boat to make sure its balance. To add on,  I will find a way (get the bigger plastic bottle to place solar panels and prepare the procedure to connect solar panels to motor and switch) to substitute battery to a solar panel, which produces healthy renewable energy for the environment.

Engineering project: Create and Improve


Reflection on progress:

On the first day, I finalized the model and got confirm from Mr. Panych. In  remaining time, I gathered materials and shaped the plastic bottle.







I drilled the hole on the wood stick. This made sure that fan is connected with motors

Reflection on progress:

I spent most of the time connecting wires and switch because I had to watch youtube tutorial several times, so I can follow the right track.

I had extra time to work on my project after school. At that time, I connected a black and red wire to each motor. When I turn on the switch, both motors vibrated. I could see motors work! Additionally I sticked one wooden stick as a stanchion so these motors can standstill.


Reflection on progress: 

I tested in the bathroom sink today. Even though I don’t have any video for the testing, I could realize the problem on my boat


  1. Fans crashed each other because they are not only have big size but also close together.
  2. The wood sticks that connect motors and fans are too straight to the boat. This made fans spin above the water resulting water splashes and eventually, motors and boat can wet.


Reflection on progress: 

The boat’s improved version:

  1. plastic fans –> copper light small fans
How the first method improved my work?

Unlike plastic fans, small fans are less likely to crash each other as well as prevent the boat to sink from their weight.

  1. sticks are straight to the boat –> sticks are lower down about
How the second method improved my work?

Prevent boat to wet and diminish motors’ noise


What feedbacks i got from others?

  • block cavities below the motors to prevent its’ sink
  • block the boat’s upper area to prevent water to go in

Before I got feedbacks:

After I got feedbacks:



Engineering Project: Develop and Plan

Model my idea of the project:

Materials and procedure:

Materials I need: 


Drill, scissor, box cutter, glue guns, Scotch tapes, wood hand saw, ruler, marker,


plastic bottle, two wood sticks, cupper foil (5*5 cm), rectangular wood (3*5cm), switch, two red wires and one black wire, two motors, GP Ultra battery, 12v battery connector

Necessary Techniques:

  • How to connect wires to switch, batter, and motors

  • How to drill the holes at the end point of each stick

Plan for the project: 

Thursday: confirm my model and set up my necessary materials

Monday: connect wires to switch ( 50 minutes) and connect fans with motors

Wednesday: connect motors with wires and use battery connector to join wires to battery

Friday: finish making the project and test it


Engineering Project: Define and Inquire

What is this engineering task

This engineering task is to produce a product that goes through energy transfer we learned in science class in the first semester of grade 9.

We learned many types of energy: heat energy (thermal energy), chemical energy, elastic potential energy, gravitational potential energy, kinetic energy, sound energy, light energy, electrical energy and etc…

What are you thinking about doing? (this can be multiple ideas)

  • renewable energy- lights on the room
  • Free energy salt water with LED light bulbs

  • motor boat

  • Free energy fan with CD

  • Free energy fan from magnets using CD flat

Websites ( procedure):

  • Toy: boat with balloon

  • How to Make a Simple Electric Boat

ANALYZE those ideas: What are the pros/cons about those ideas?

Experiments (horizontal column)

Advantages& Disadvantages (vertical column)

Free energy salt water with LED light bulbs

Free energy fan with CD

motor boat


  • Fit in purpose: easy to get light in emergency situation
  • Fit in purpose: Makes me cool
  • Sustainable( durable) because of using renewable energy source
  • Fit in purpose: great toy to play with


  • Need Precise description, possibility  to fail the experiment
  • The process is too complicate
  • Not sustainable because of using battery

Capstone Video


The video above is capstone video. My capstone topic was about climate action which is the 13th goal out of 17 Sustainable Development Goals. Approximately I started my capstone project since one and a half month ago. I learned about all seventeen SDGs and chose climate action because I want to know how ISB do actions regarding climate change. Through this project, I could deeply understand about climate change and what can be solutions to solve problems.

Our awesome catapult !

Alicia and I be a team and did catapult project. This project is related to our module 4: quadratic function. When we through the ping pang ball using our awesome catapult, it draws the parabola. Then, we use Logger Pro to bring real quadratic function.

The most critical learnings were to know and to use different types of form: Standard form, x-intercept form, vertex form. Through this project, I also enjoyed transferring Height VS Distance graph to Height VS Time graph.The most challenging aspect of this project is the process of making catapult during the class time. The reason why it was the hardest one was we don’t know which design of catapult is the most effective to meet our goal. I want to make design differently because I am curious about how size or weight affect ping pang ball how another design is also efficient to meet our strategy. This project helped me to understand the different form of the graph such as standard form, factorized form and vertex form and the way to transfer graphs, for instance, standard form to factorized form.


Reflect in elevator pitch

This is the video for elevator pitch in the capstone project. I chose climate action out of 17 SDGs goals. In this video, I introduced my survey results and my stance about ISB’s action towards its carbon emissions.


When I see my video again, I speak loud and clear enough that audience could understand my speech clearly. However, I think I need to work on gesture use and more eye contact. I did some eye-contact with audience but I don’t think its enough. The reason why I want to improve this is because gestures make people more understandable.


Polymer Journal 4

Basically, we had two prototypes, the prototype was original boogers and the second prototype is double boogers (which contains the double amount of ingredients). The first prototype had white color and the bubbles on it. The strength of it actually keeps heat but the limitation is that the first prototype only keeps heat in a white, just a few minutes. Compared to this, our second prototype, Insulax is more effective. It has white color and I could see the bubbles more than the first prototype. The strength of the prototype is to keep heat in a longer time than the first prototype. It is also easy to clean when you reuse. The recommendation in the future is to create one more function in Insulax because for costumers, having more than one function makes comfortable and they will buy our polymer more; have the function that effectively keeps heat and also store food.

Claim: Our polymer called Insulax was the most effective for meeting our goal because it meets all the criteria.


1: Slow temperature changes

2: Bubbles form:

3: Not sticky/Not slippery:

4: Different version of color:

5: Slow stretch/ Not break easily:


Frist of all, from testing, Insulax keep heat. When we use Insulax, the temperature dropped 35 Celsius to 33 Celsius while the other one dropped 35 to 30. We set up 5 minutes limitation and the only difference is having our polymer or not, but with our polymer, keep heat better!

Secondly, our polymer forms the bubbles that show our polymer keep the heat.

Thirdly, it’s not sticky but not slippery that is comfortable.

Fourthly, we can use pigments to form different version of color which is great to attract customers.

Lastly, our polymer is not broken easily, we can continuously use it. Our polymer is not disposable Insulax so people can use many times with only one polymer.  When dirt sticks to it, Insulax is also easy to clean.


  1. Prepare 20ml borax, 40ml starch, 2cm glue with 14ml water
  2. Pour pigment to glue if you want color
  3. Combine borax, starch, glue and water in one and mix them
  4. Take out the Insulax
  5. You can stick wherever in the bottle or cup!

The first time my partner and I try to collect some ideas about heat insulator, we think it is impossible to make heat insulator on our own hand because we need to find materials which keep heat. However, we continued to research and think about the topic and finally, we could figure out that borax has characteristic of heat insulator, which keeps heat. I was interested in the test of our polymer production. It was fun to do experiments which prove Insulax actually be heated insulator because when I figured out that our polymer could work, I found it is interesting about the characteristic that borax has. Through this project and this unit, I learned that several interesting characteristics of materials and deep understanding of polymers

This is our video !

Polymer Journal 3

We are making a polymer called “Insulax” which traps the hot air inside and keeps the cold out, and preserve the heat in. For the final prototype, we want to include, pigment to create different colors of polymers, not sticky and slippery that can hold polymers easily in people’s hands, not heavily to carry for our target audience (people who travel/ kids and adults) and slowly stretches that people can easily change the shapes when they stick Insulax on their bottles.

First, prepare the materials that doubles up the amount of them bellow. Glue: 2ml (original boogers: 1ml) starch: 40ml (original boogers: 20ml) borax: 8ml (original boogers: 4ml) water: 14ml (original boogers: 7ml)

First, prepare the materials that doubles up the amount of them bellow. Glue: 2ml (original boogers: 1ml) starch: 40ml (original boogers: 20ml) borax: 8ml (original boogers: 4ml) water: 14ml (original boogers: 7ml)


Second, mix them all, will show up Insulax bellow.Second, mix them all, will show up Insulax bellow.




Third, pull Insulax out from the cup and stand them together with using your hand






After the 3rd step, you will find many bubbles






Test that shows success of criteria

#1 Temperature changes (borax keep heat): 

#2 Bubbles form:

#3 Not sticky/Not slippery:

#4 Different version of color:

#5 Slow stretch/ Not break easily:  


#1 temperature change

Trial 1 Trial 2
Experiment with sticking the prototype to plastic bag with hot water to a plastic bag

Time: 5 minutes


34.5 –> 31 Celsius

(3.5 Celsius decrease)

Amount of borax:

8 ml borax



35–> 33 Celsius

(2 Celsius decrease)

Amount of borax:

20 ml borax


Experiment with not sticking the prototype to plastic bag with hot water to a plastic bag

Time: 5 minutes


34.5 –> 30

4.5 Celsius decrease

Amount of borax: 

8 ml borax


35 –> 30

(5 Celsius decrease)

Amount of borax:

20 ml borax

Left: Insulax to plastic bag with hot water Right: Insulax to a plastic bag without the prototype

Our purpose of making Insulax is to keep heat. Consequently, very extreme temperature change is not good for our prototype. However this testing demonstrates that we already fulfill our purpose( keep heat) and criteria.


#2 Bubbles form

bubbles on the Insulax

Bubbles is one of way to prove that our prototype actually keep heat directly

#3 Not sticky / Not slippery

if our prototype is slippery, it would not stick to the water bottles. Our prototype shows that it is not slippery but not a lot sticky.

#4 Different version of color:

people might like these colors

#5 Slow stretch/Not break easily

Insulax slowly stretch and not break easily, which means that customers who buy this will not confuse of changing shapes easily. Also, our prototype is not break easily and stretches so customers easily cover it around the water bottle as well.


Our awesome item, insulax fulfilled all of 5 criteria. These evidences prove that our prototype works!






Polymer Journal 2

The goal of our polymer project is to design a polymer that can be used as a heat insulator. Our first target market audience is for travelers because our heat insulator will bring significant effect to them. Our heat insulator will help them carry easier than carry a thermos. Thermos includes many different materials such as steel and glass, but our polymer only includes boogers with borax to keep heat, which is light. Due to its light, it is cheaper than thermos, so I believe our heat insulator will help adults who travel. Our second target market audience is for teens and kids. Our heat insulator also help them because if they use our heat insulator, they would not need thermos anymore. Not only our polymer is simple and cheap but also our polymer has many different versions of color that kids might like. Therefore, we want to make sure it has physical properties to include borax to keep heat, pigment to create different colors of polymers, not sticky and slippery that can hold polymers easily in people’s hands.

Polymers that we are looking for is gloop, boogers, and super slime.
From our testing, Gloop’s slime rate is 3 ( not slimy not sticky). This is important fact because we want our polymer to stick on the water bottle so that can keep the heat of water bottle. If the slime rating is 5 ( very slimy), it will not stick to the water bottle because the polymer is very slimy
Boogers characteristic from our testing is extended in slow and quick pull test, slowly stretches, and helps to keep heat. Our polymer’s role is basically to cover plastic bag. If it suddenly broke, it would be uncomfortable to users (super slime is one of it that easily break in quick pull test; uncomfortable). We are focusing on heat insulator, which helps to keep heat. Boogers is one of it. The borax has the characteristic of keeping heat and the borax is one of the materials which is necessary to make boogers. Therefore, we are looking for boogers with more borax on it.

Our plan to develop our prototype:
First, design our product
Second, make boogers with more borax on
Third, do several tests to proves that our product is a success
Fourth, make an awesome video for selling product

Our method to show that our polymer is working is to compare the temperature between original boogers (8ml borax) and our prototype boogers. Our prototype boogers is adding double amount of materials needed for boogers. After making two boogers (one is original, one is our prototype), boogers covers with each two plastic bags, which contain hot water. After then, you need to set up 5 minutes limitation and to test how much temperature drop in 5 minutes. If our prototype’s temperature drops less than the boogers and our heat insulator is working. Also, we have to check whether our polymer has bubbles or not. The reason why we have to know there are bubbles or not is that bubbles are the main evidence that shows rather it keeps heat or not. The bubbles form means the hot air inside the bubbles. Therefore, to know our test is successful or not, we need to record both temperature change and the bubbles formation


This is the only source I used in second journal