Mars/Space Station Issues

Hello, right now in Science class, we’re learning about the the issues of living on Mars, and the solution.

The issue I chose to research on is Poison in Mars and atmosphere. One of the major problems of living on mars or living in a space station is that there are different kinds of poison gas in Mars. The major poison in mars is CO2, but there are many other more. For example, trichloroethylene, formaldehyde, benzene, xylene, and ammonia. These chemical poisons can cause several effects on human beings, and may need to health. The effect it could have on human includes, headache, heart problems, or dizziness.


However, there are some solution to the problem with poison by planting air filtering houseplants in the space. In the late 80s, US government agency has joined an association contractors of America, also know as ALCA to find out the most effective indoor plants that can remove toxic agents, or poisons from the air. The study shows that House plants are the most effective indoor plants to filtering out the poisons from the air. People have been researching about the houseplants 25 years ago, and have tested over and over again to prove that it is the most comprehensive and accurate ways to remove toxic agents from the air. We can plant filtering houseplants in order to solve the problem of CO2 poison in Mars that are bad for our body, because filtering can remove the chemical poisons in Mars.


Another solution to the problem of poison is that we can built robot to dig a hole in the mars in order to plant seeds in the hole. NASA are now researching how to plant plants on the mars, and it seems like building robot is going to be the first step of planting seed in the mars. By using the robot , we don’t need as much human beings to land on the mars to plant the plants. Also, plants absorb energy from solar, which means that we don’t need human to take care of the plants the entire time because it can grow by it self. When plants photosynthesize, it can absorb CO2 from the air, which will get ride of the poisons. But at the same time, it also releases oxygen, which can also solve the problem of no oxygen in the Mars as well.


I think the houseplants filtering would be a better solution, because it is much more easier than planting plants, since we need to be able to build a robot to dig a hole in the mars first. Building the robot could have an issue on the economy, because it might need huge budget and resources to accomplish the mission. However, by using the filter we can also clean out the poisons in the air with less money and time, but also make the environment appropriate for the organism to live in. This is why I think houseplants filtering would be a better solution since it is more convenient, easier and it clean out the poisons entirely.



Conflict minerals

Hello, for the unit in Science class right now, we are learning about minerals. The major project of this unit is Conflict Minerals, which is about how people have conflicts when purchasing minerals. Today, I will be explaining more about the conflict minerals, and whether I think we should have i pads in our school, or not.



There are many elements and compounds that are used in school technologies. For example, gold, and the three T’S, which is Tungsten, Tin, and Tantalum. Out of these elements, I would like to focus on Gold and Tungsten today. Gold is the biggest source of conflict minerals that are trade in Congo. It is also the highest value of substances used in technologies. Gold is used in the devices as to coat the wiring. Gold is a very useful elements for school devices, because it has a high ability in conducting electricity into wires, but yet it doesn’t tarnish. It is also a very light substances, so it is good to use in technologies because it doesn’t weight as much as copper or other elements. Tungsten, which is another major elements that are often used in electronic supplies. It is a dense metal used to resist the percentages of damaging your i pads. For example, the silver cover that protects the outside of the i pad is made out of Tungsten as well. Tungsten also makes sure that the cell phone vibrates and works well.


Who mines them?

The major country that produces Tungsten and Gold are both in China. Although, Democratic Republic of the Congo, is not listed in one of the top five producers of mining minerals, there are many conflict problems in Congo right now. Most of the miners in Congo are physically forced to do the work, and yet they don’t receive reasonable amount of income. The mines in Congo are controlled by the government troops, that’s how the government soldiers receive high amount of income in Congo. The miner trade is often used for the top people, and the income are spend for purchasing weapons and to maintain their control of military. Out of $176, 750, 000 amount of revenue, the miners needs to send out $106,050,000 amount of money for funding the war. This is why the violence cycle continues forever.

There are over 5.4 million death caused by mining minerals in Congo. 45,000 labourer die each month because of conflict minerals. Most of the miners work in danger locations, and are physically forced to do it. Some of the miners may get stuck in the hole, and it can leads them to death, or sometimes miners may die of the physical exhaustion in the bad conditions for a long period of time. Militias used to make $185 million each year on conflict minerals. This caused a lot of conflict in between miners, because everyone wanted to sell the elements used in devices, such as the three T’s. Many miners die while mining for the government soldiers, but yet they barely earn money from mining. Many even don’t manage to earn enough for surviving. There is an ethical, safety and money issues, because the government troops forces people to mine the minerals for maintaining the military power, in a difficult conditions, and yet they don’t receive satisfied revenue.



To solve the problems of the conflict minerals, I think we should be more aware of the ongoing problems around the world. We could do this, by informing students about Conflict minerals, so that more people understands about the conditions in Congo right now. We could also change the technologies systems in YIS. For example, since we have an computer for each students already, so maybe there is no need for sending out i pads as well. However, I think it is very useful to use i pads during classes, because there is multiple applications that are very suitable for educations. Such as, Coach’s Eyes and notability etcetera. Therefore, I came out with an idea that we could share i pads within classrooms. We could purchase some i pads that for school educations, but not giving them to students. YIS could keep the i pads in school, and reuse those i pads over and over again. This means that YIS doesn’t have to purchase new i pads each year for the new 7th graders, and also, we could reuse the i pads to reduce the percentages of conflict minerals. We could also share an i pad with partners or groups, so that we don’t need to import so many devices from Congo.



Alex Rivera. “VENKEL LTD.” Conflict Minerals Infographic. N.p., 2011. Web. 26 Nov. 2015. <>.

BBC, ed. “BBC NEWS.” DR Congo Minerals: Most Mines ‘conflict Free’ since US Law. N.p., 10 June 2014. Web. 26 Nov. 2015. <>.

Ben. “Congo’s Conflict Minerals.” WAR Child. Anne Pannecke., 2014. Web. 26 Nov. 2015. <>.

“Conflict Minerals 101.” YouTube. ENOUGHproject, 18 Nov. 2009. Web. 26 Nov. 2015. <>.

Hobart King. “The Many Uses of Gold.” Geoscience News and Information. N.p., 2016. Web. 26 Nov. 2015. <>.

“What Are Conflict Minerals.” Sourse Intelligence. AVALAUNCH, 22 Sept. 2014. Web. 26 Nov. 2015. <>.

Citations from EasyBib


Science project – Correlation

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This graph shows the negative correlation. We made this graph, by sensing the motion detector to the wall, and then slowly walk toward the wall.

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For this graph, we first stayed at the same position, and then walked backwards very quickly to form a slope. After we formed the positive correlation, we will walk in the same speed for a while, so that the speed stays the same. Then, ran toward the motion detector for the negative correlation and then stay at the same speed.

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We formed this graph by walking toward the wall very quickly, and then stayed at the same speed. Repeat this process one more time. Once your’ve done the previous process, you will then ran to the opposite direction of the sensor. This will form a positive correlation.



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You can create this graph by staying in the same speed at first, and then when the line meets the angle, ran backwards quickly, and then stay for a while. After that, you will run back toward the sensor, and when you formed a slope, you stay in the same speed, and again, you do the same step, run toward the sensor fast, and stay.

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To form this graph, you will need to walk to the opposite direction of where the sensor is. Slowly at first, and then faster and faster after a while. Then, you will need to walk at the same speed, and that will form no correlation. When the line meets the corner, you then run toward the wall quickly, and then stay at the same velocity. Then you will run backwards again, and then stay at the same velocity.

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This graph shows a positive correlation. You can form this graph by sensing the wall, and then slowly walk backwards.

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This is a zigzag graph. We formed this by running back and forward in a very short period of time.

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For this graph, it has no correlation. We made this by staying in the same position.

Should we insulate in Yokohama? – Science

It is good to have a cool roof that has a high insulation in the summer, because it doesn’t let the thermal energy in. In summer, the temperature is very high, if your house didn’t have a very rich insulation, then it will be too hot. That’s why we use air conditional in the summer, but it will cost a lot of money. Over the years, people discovered that you will be able to save a lot more money if you had a cool roof at your house, it will save the energy from 10 to 15%. Cool roof is capable to help the house by not letting more thermal energy into the house.



Of course, in the winter, it would be the best to have a roof that conduct the thermal energy. This is because in the winter, it is cold so we need to have a roof that conduct the thermal energy, to make the temperature in the house warmer.

It would be really hard to insulate YIS, because there are always students, and teachers going in and out the school. Every time when the window or the door is opened, the insulation will became weaker. We also have to change the roof to a good insulation roof, and place the carpet on the floor, or use double glass window…etc. This is why it is very hard to insulate YIS completely.

“Energy 101: Home Energy Assessment.” YouTube. U.S. Department of Energy, 14 Oct. 2010. Web. 14 Oct. 2014.
“Energy 101: Cool Roofs.” YouTube. U.S. Department of Energy, 25 Jan. 2011. Web. 16 Oct. 2014.
“Keeping Homes Warm, and How Insulation Works.” BBC News. BBC, 2006. Web. 14 Oct. 2014.