"I have no special talent. I am only passionately curious" - Albert Einstein

Author: emily.chang (page 1 of 2)

288.36-A video about migrant workers.

This year I made a capstone movie about migrant workers. I interviewed my Ayi, I think it helped me with my video because it shows that everyone has a special experience in their life journey. And without that they won’t be like what they are now. My video focuses on migrant workers because I think most people don’t realise the importance of them, so I wanted to find more information about them. I also want to make people care about them and to help them when they can.


-white glue 150ml

-corn starch 2 spoons

-borax 50ml

-guar gum 1 spoon

The procedure that we made our polymer is the following:

1. Add in 150ml of white glue, 2 spoons of corn starch, 50ml of borax, and 1 spoon of guar gum into a beaker.

2. Mix all the materials together in the beaker

3. After it  is in the shape of a polymer (harden), take it out of the beaker. Stretch it until it is stretchy and test it on table corners.

I think the polymer we made with white glue and borax was the most successful. It was very stretchy and and easily shaped. We had different prototypes and some were not stretchy, so it wouldn’t protect the corner, it would just fall off directly. Other prototypes were too slimy, which means that it would stick on our clothes or skin. Back to journal 1 when I researched about polymers, the polymers we are making is called artificial polymer, which means that it is not 100% made out of natural materials. The polymer we made was made out of borax, which is a toxic material. But only using a small portion of it would be fine. And our material is made for protecting the corners not to eat or put on skin for a long time. 

I think our plan is overall successful. During the planning stage we quickly decided the product we were going to make, then we started to make our prototypes. We tested all of our prototypes to find out the best product. And at last we created a pitch which is a video to show our audience the characteristics of our product. I think our video is pretty successful because we added in how the product could help us in life. However, we missed some parts, like the sustainability and the pros and cons of the product. So, we decided to talk about it after the presentation. I think our polymer is sustainable because clients could re-use the product and it would still stick, so it has a positive impact to the environment.

Polymer Journal #4

During this class I observed different types polymers, most of the polymers we made stretch really well, but others are tearable. And that is not a good property for the polymer. Other strengths of the polymer is it is soft and sticky. It sticks on the table, but it doesn’t stick on your skin and your clothes. However, a limitation of our polymer is that it can only be a big piece that is stuck on the table. Because a small piece of the slime can’t protect the corner. Another thing is the slime is not drying on the table, so it can’t be stuck on the table for a long period of time. Some polymers did not even stick on the corners, it would just directly fall off the table. So these are some things that I need to improve on. When I showed my mom the polymer, she liked the idea and said it is useful. However she thinks that we need to make sure that we need to keep the size of the polymer, and to find a way so the polymer could stick onto the corner for a long time. And that is why clients would like it, it also makes it easier because clients wouldn’t have to change the polymer all the time.

Polymer Journal 3

Now ourgroup is on the developing stage of the product. For our polymer we would like it to have the following physical properties: soft, able sticks on corners, but does not stick on hands or clothes. Easy to shape. Our plan for developing is to use different types of materials to make the polymer and see which one works out the best. This way we could compare different prototypes. Despite this, we would also mix a little bit of different polymers to make it into something new and test it. The method of testing our prototype is very simple. We would take a little bit of out prototype and stick it on the corner of the table. After that, we would hit the table, only using a little bit of strength. To test to see if the polymer is protecting us from the corner or not. This is an effective way to test our polymer because some of the polymer we tested would not protect the corners very well. It would form a little gap, and hitting it still hurts. While, other polymers work really well. Those types would stick on the corners and not move. So it wouldn’t change when you hit it.



Polymer Journal #2

In this polymer project the goal my group got is safety. Based on this we decided to make polymer that can be stuck on sharp edges or corners that might hut young children or adults. This polymer would be soft so when someone accidentally hits the corners they would’t get hurt. However, this product is really popular, so we wanted to improve this product and making more environmentally friendly. Most of these products are made out of plastic. And as we know, plastic is very unenvironmentally friendly. So, our group wanted to use natural polymers to replace it, but still have the same effect. Our target audience is basically everyone, but especially toddler’s parents. Because I have a little brother at home and he is just the height as most tables are, so it is really easy for him to bump on the corners of the table. Therefore, to make sure that toddlers are safe inside. Their parents should try to make sure that there’s no sharp edges at home. So, this product would be really helpful. Last class we tried different prototypes of the polymer, and I think that adding starch or starch solution is really helpful to our project. This is because it makes the polymer more stretchy and it doesn’t stick on your hand anymore.

Polymer Journal #1

In this unit, we are creating polymer. So, what is Polymers? Polymers are large molecules that are chemically bonded together. They can be separated into many different parts, and each separated part is called a monomer. Monomers are small molecules that are joined together. Now, to be specific there are two types of polymers. Artificial and natural. Artificial polymers are often identical and is made by scientists and engineers. For example nylon, polyester, plastic and more. The manufacturing of artificial polymer is difficult, I will use acrylic fiber as an example. First polymerisation happens, it means combining two sets of molecules, and changing it into a different structure. Then, heating and spinning, workers would heat the polymer. After a while, air causes polymer to harden, at last fibres are are stretched to create strength. On the other hand, natural polymers are the opposite, their links are different from the bond next to them. They are naturally found and can be extracted. A few examples of natural polymers are silk, wool, DNA and more. But one thing bad about natural polymer is if we used it all we can’t find any more materials to replace it. So we should use environmentally products, and help save our planet earth.


Carnegie Mellon University. “Natural vs Synthetic Polymers – Gelfand Center – Carnegie Mellon University.” Natural vs Synthetic Polymers – Gelfand Center – Carnegie Mellon University, www.cmu.edu/gelfand/education/k12-teachers/polymers/natural-synthetic-polymers/.

“Unsafe Slime? How Bad Is Borax, Really?” The Chronicle Flask, 28 Dec. 2018, chronicleflask.com/2017/08/07/slime-safety/.

Helmenstine, Anne Marie. “What Are Monomers and Polymers?” ThoughtCo, ThoughtCo, 16 Jan. 2019, www.thoughtco.com/monomers-and-polymers-intro-608928.

Youtube video about polymer:https://www.youtube.com/watch?v=XjDDHnByfuo

Characterisation-The Giver

How low self-esteem can lead to unhealthy choices

Teens could exercise, workout or go on healthy diets. Learn what foods are good for you, and how much is the right amount. And eat food that’s good for them, and make sure that they control it in the right amount.

In today’s health class I learned about how low self-esteem can lead to unhealthy choices. Our group researched on weight loss surgery. This when teens reduce their stomach to make them eat less food. But I think this is a really unhealthy choice. And I don’t recommend weight loss surgery for a normal teen, because the risk is too high. Also, they might still not feel good after the weight loss surgery. Not just weight loss surgery some teens would get plastic surgery to look like their celebrity. And that also has a serious consequence. Teens might get addicted to plastic surgery because they would always think that they are not pretty enough. More than that, teens might get their cut infected.

At last, I think teens should talk to doctors and counselors before they make decisions. And they should use healthy alternatives (exercise, workout or go on healthy diets) to replace unhealthy choices.

The effect of social media on depression

In today’s health class, we chose our topics about health issues. The topic I chose is the effect of social media on depression. After my research the answer is social media has an negative effect on depression, which means that too much social media makes depression worse.

To make sure that the cites that I’ve visited is reliable, I put my cites through the CARP test. In my first source, the information was published in November 25, 2018.  Which is pretty close to now, and means that the source is relevant. The source also had a “about us” page, which makes it easier for readers to contact the authors.

At last, after putting my cites through the CARP test I think they are all reliable

Revolutionary voices journal

In this e-book, I wrote about Marie Antoinette’s daughter, which was the princess during the time revolution time. This book focuses on the French revolution. I think one thing that would benefit the readers is it introduces the French Revolution in a fictional  way, so it should be more interesting than informational text.

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