Science minerals blog post


Posted by 22yuanl | Posted in Science, Uncategorized | Posted on November 26, 2016

In Science, We’re learning about elements in a technology. We use technology every single day for work and for fun. We had to choose which technology we want to focus on and choose one. I chose iPhone from apple, iPhone is probably the most popular phone in the world.  Apple sells three models, 16GB, 32GB, and 64GB. Prices of the newest iPhone are: iPhone 7: $649 (32 GB), $749 (128 GB), $849 (256 GB) iPhone 7 Plus: $769, $869, $969. The iPhone 5 has Platinum, Aluminum, copper, Gold, and silver, these are the most important elements in the iPhone 5. Most of the cell phones use Gold which is used to coat wiring and is the most expensive metal inside a cell phone laptop, Tantalum which stores electricity, Tin is used a solder on a circuit board, and tungsten which makes sure the phone vibrates.

What each part is made of in iPhone 6s

Outside of the iPhone 6s

  • The case uses aerospace-grade Aluminum with and outside layer for extra protection. The paint for the iPhone is only 5 micrometers thick. That’s thinner than regular paint!
  • The camera is made of sapphire glass, the lens rates a 9 on a Mohs Hardness Scale, making it almost as hard as a diamond. So if you’re wondering how your screen breaks but your camera didn’t, that’s why.
  • The iPhone’s screen is much much more complex than it may look like to you. The aluminosilicate glass has ions for strength. The 2nd camera has Aluminum. The screen is made of silicon, Potassium, Indium, Tin and rare earth metals. Some of the rare earth metals are used to produce colors on the screen. A layer of tin oxide is used to make the touch screen possible.

Inside the iPhone 6s

  • The Battery is made of cobalt, Graphite, Lithium, and Aluminum.
  • The music or anything you hear on your iPhone is because of high-powered neodymium magnets. It’s made from neodymium, iron, and sometimes has other rare earth elements. The same magnets also make the phone vibrate. Nickel, Neodymium, Praseodymium, Boron, Dysprosium, and iron are all the elements in sound and vibration for the iPhone.
  • The electronics in the iPhone is the most complicated. The processor chip is made of Phosphorus, Antimony, Arsenic, Boron, Indium, Gallium, and silicon being the main one because it’s mainly made from silicon.  Micro and electrical, Copper, gold, silver, and tungsten is used for electrical connections on the phone.  The silver is the most useful metal for this.
  • Micro-capacitors makes sure the electricity go normally. apple managed to make the Tantalum conflict free in 2014.
  • The soldering in electronics is made of copper, tin, silver.


Where do the materials come from?

The smartphone is made from mined materials which mostly comes from the congo. Most smartphones use the same materials. Gold comes from Peru, Copper comes from chile, silver comes from Australia, Platinum comes from South Africa. People from Congo are forced to mine minerals for phones and laptops. They don’t get any salary. The armed groups force them to mine in Eastern Congo. Then the armed groups started controlling Uganda and Rwanda and other neighbors. The country makes millions selling these materials but the money is used to buy guns and grenades. The materials then ship to Thailand, Malaysia, China, and India to be refined. The minerals get mixed with other minerals.

What could we do?

Like I said before, Tungsten in Apple is already a conflict-free product. We could demand conflict-free products by getting in touch with cell phone manufactures and laptop companies. If Apple can make Tungsten conflict free, they can make other elements conflict free too. 



Desjardins, Jeff. “The Extraordinary Raw Materials in an IPhone 6s.” Visual Capitalist. N.p., 10 Mar. 2016. Web. 25 Nov. 2016.

Conflict Minerals 101. Dir. Robert Padavick. Perf. Jon Prendergast. N.p., n.d. Web. 26 Nov. 2016.

“Mining Your IPhone.” 911 Metallurgist. N.p., n.d. Web. 26 Nov. 2016.

@btschiller. “This Smartphone Is Made From Fairly Mined Minerals, And It’s Designed To Last Longer Than Your Contract.” Co.Exist. N.p., 12 Dec. 2015. Web. 25 Nov. 2016.

Https:// “5 Things to Know About the True Cost of an IPhone.” Lifewire. N.p., n.d. Web. 25 Nov. 2016.

INS planing pic


Posted by 22yuanl | Posted in Uncategorized | Posted on November 25, 2016

Koumei:      Ms.Madrid is always right

We put the TSC last because we have to make sure we get a good grade before we submit.





field Studies


Posted by 22yuanl | Posted in Uncategorized | Posted on November 3, 2016

I enjoyed it quite a lot; We were the last group, so we had all the teachers behind us. We would stop to rest, and the teacher would catch up, and we would tell jokes. We had a lot of fun with me being the health doctor and randomly telling people to drink more water. I think I did well on cheering others up by the health doctor thing even when I’m not the motivator in our group. For the last activity on Friday, I think I learned a lot of being a community. We had to trust the person all the way at the front and always trust the person in front of me because they know better than I do.


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