Unit 3 - Measurement - Andrew Lerario

Unit 3 - Measurement

2/3/2014

This week we are moving away from the more abstract, conceptual areas of chemistry and getting into the computations. Our studies will begin with developing a familiarity of the measuring units we typically use in science and then proceed into some analytical techniques. Below are handouts for the work in this unit.

Unit 3 Cover Sheet

Unit 3 Notes

Dimensional Analysis Worksheet

Dimensional Analysis Illustration

Measurement Worksheet

SI Conversions Worksheet

Measurement Lab

Sugar Lab Part I

Sugar Lab Part II

22 Comments

Sophie Williams link

2/4/2014 03:23:47 am

This article is about 3D printers and how there are endless possibilities to what they could do. In this article it talks about all the food that people have experimented with printing and the shapes they created with food.

Anything from space shuttles made out of cheese, to dinosaur shaped spinach quiche, a 3D printer has printed it all. I really enjoyed this article because it is a huge step in not only the science world but retail, and now grocery. When thinking about it, if we ever get to the point where 3D printers are as much of a consumers item as are laptops, and cell phones, then more and more places will start to be put out of business for lack of income. If everyone has one at home, the possibilities are endless.

Becca Jones

2/5/2014 12:25:12 pm

When I think of printers, I think of black ink letters on paper. I never imagined that this would even be an idea. You made a very valid point in the sense of places being put out of business due to lack of income if this were to happen though; which is a scary thought. This sounds so futuristic and movie-like to me and probably also to many others. Maybe our world is finally advancing at the pace we would've assumed years ago. I can't wait to see these results.

Tiger link

2/4/2014 03:27:35 am

This article is called the "Monkeys born with edited genes". This caught my eye as genetic modifications has always been a strange & weird, but fascinating topic. In this article, it talks about how scientists edited 2 of these monkey's genes by using molecular scissors first discovered in bacteria. What was interesting is that the purpose of the experiment was to find ways to cure humans who would be born with defects. They could go snipping out & replacing the mutated dna that you would be born with. This seems a bit like a precursor to the day when we may have genetic modification made to us - like enhancing vision, sounds we hear, or making our immune systems stronger.

Paul Enriquez link

2/5/2014 11:32:17 am

Article category: Robotic limbs
This article is about real life robotic hands.The tester said it was like having an actual hand.His real hand was lost after he used fireworks.A group of European engineers designed and inserted this robo hand into the tester.The hand has a sense of touch that when connected to the tester's nerve cells it acts like a real hand,all this technology is advancing fast and is becoming more life like.Maybe next there's going to be cyborgs?

Becca Jones link

2/5/2014 12:43:03 pm

I came across this article while navigating through the Reddit science section, duh. I was skimming through subsections and found this in Neuroscience; an article titled, "Your memory rewrites the past and edits it with new experiences, study finds."

So this article proposes the idea that your past memories are constantly being edited and altered with new experiences. Weird. A Neuroscientist states that our brains are designed to be current. They rewrite our memories with new experiences so that these stories and past experiences are apart of the modern world.

I was attracted to this article because I honestly didn't like the fact of my memories being altered. It scared me. I want my memories to be consistent and accurate. But, there was a good example on how it could positively influence your life which was actually kind of cool. I'm still not 100% convinced, although the science and testing behind it was credible. If you find this interesting, let me know what YOU think.

Jake

2/7/2014 03:55:24 am

I think that it's a good thing that we are able to evolve with our thoughts. It's not real scary because it happens naturally and it helps us process new information.

Nikki Anderson

2/12/2014 02:47:27 pm

I knew that not remembering your memories properly was possible. There is a quote from John Green that says, "You don't remember what happened, what you remembered becomes what happened." (or something like that). But the fact that your memories can be altered by current experiences is definitely weirder. I would like to learn more about this.

Jake Schroeder link

2/7/2014 03:52:47 am

I found this article on a website called Chemistry Times. It is about researchers in India who came up with a way to convert plastic material into fuel using low-temperature conversion. This is interesting to me because it solves two problems at once: fuel shortage and the large amounts of plastic waste taking up space in landfills. They are able to create engines that run on common types of plastics such as polymer. At first, I thought that this was kind of a bad idea considering burning plastic leads to huge amounts of pollution, however after further reading I realized that the low-temperature method results in a low amount of hazardous emissions. I think that it is an interesting step into the future of fuel and an overall cool idea.

Victoria Delgadillo link

2/10/2014 07:14:20 am

I found this article by going on the Science Daily website and looking through the articles categorized as insomnia.

There is a difference between nightmares and bad dreams, nightmares usually involve more aggression, whereas bad dreams touch on things that you are dealing with or are subconsciously on your mind. Nightmares tend to have a bigger emotional impact on people, most of the time it doesn’t have anything to do with fear, but rather with things like guilt or confusion. Nightmares often instill such an uncomfortable feeling that it will cause you to wake up. Sometimes nightmares becoming so terrorizing that it affects a person in their daily lives. However, scientist believe that nightmares are something that can be treated so that you can control it.

I was first intrigued by the explanation that there is a difference between a bad dream and a nightmare. I think it’s interesting that while bad dreams relate more to our real lives, it is nightmares that leave an emotional impact. I liked the idea that by using different techniques you can actually learn how to control your nightmares and manipulate them to go the way you want. I wonder if everyone is capable of doing this or only a select few are, and those are the people we hear about.

Kristine Nailon link

2/11/2014 10:17:17 am

Title: Special glasses that help surgeons 'see' cancer

This article is about High-Tech glasses that may help surgeons visualize the cancer cells. It works when the glasses glow blue in the eye wear. The glasses were developed at the school Washington University School of Medicine in St. Louis. Although the cancer cells are hard to see even under a magnifying class. The glasses were designed to see cancer cells from the healthy cells to make sure tumor cells are NOT left behind during any surgery. The glasses helps the surgeon to identify the tissues that needs to be removed.

Reading this article was very interesting to me because I know people who have cancer. My Aunt and Uncle have cancer. I thought it was cool how they couldn't see the cancer cells even with a magnifying glass when magnifying glasses are used to reduce the size. I was wondering how they did even come up with this brilliant idea? and I never realized how small a tumor can be. A tumor can be as small as 1mm in diameter. Last but not least, I was also wondering about how long was the process in creating the glasses.

Erica link

2/11/2014 12:06:29 pm

This article instantly intrigued me because I find archaeology really interesting to begin with. This article is about how recently archaeologists have discovered the oldest human foot prints ever discovered. They were found in Happisburgh, Norfolk after rough sea waves washed away sediment to revile a very old layer of hardened mud that gave way to foot prints of early humans.
I had no clue that after hundreds of thousands of years, there could still be footprints from early humans! It's amazing to me that bones are still being found, but something that is so easily destroyed like footprints is just shocking. Also I found it really cool that the archaeologists could determine what kind of human it was, and how old they were just by the size and shape of the footprint.

Jonathan Worley link

2/11/2014 02:20:14 pm

I found this article under the Biology subsection of Reddit Science.

This article is about how bees located in urban areas have used plastic in the construction of their hives. Evidence suggests that the bees did not just incidentally collect the plastic, because it had been chewed and worked differently than the leaves normally used for the hives. Larvae did successfully emerge from the partially plastic hives, and were found to be parasite free, suggesting that the plastic physically prevents parasites from thriving in the hives.

I think that this article is really interesting because bees are considered to be extremely vital to human survival. People say that we are slowly driving the bees out of existence despite their value, yet this article shows how we seem to help them out a bit without necessarily meaning to. It really speaks to the adaptivity of certain animals, being able to use the waste that is left behind in a very humanized world.

Nikki Anderson link

2/12/2014 05:33:04 am

This article is about the fact that we might not even have 6 basic emotions—surprise, anger, happy, afraid, disgusted, and sad. After doing multiple tests of comparing the facial expressions for those emotions, they noticed that anger and disgust had similar facial expressions, along with surprise and fear as well. Researchers say that earlier on in life the emotions are very similar, but as we grow older the emotions become more distinct. Meaning, the difference between surprise and fear and anger and disgust are less biologically affected and more socially affected.

I found this really interesting cause I thought we had more emotions that just six, so finding out there were even less than that was shocking. I was also taken back a little by the amount of negative emotions there were versus positive ones. This relates to our project in a way because we are studying happiness and the fact that there are more negative emotions either could a) make happiness harder to recognize and b) could make it less likely to feel happiness if you get caught up in other emotions. I am still wondering if there are still more emotions that happen because of chemicals in our brain. They analyzed our outside reactions, which can often be changed, but they didn’t look at how our brain reacts.

Jessica link

2/12/2014 07:30:36 am

I found this article on redit in the psychology section.

This article is about how research shows there are only 4 emotions! Crazy right! Until now science has recognized six emotions, happy, surprised, afraid, disgusted, angry, and sad. Now because of research, our facial expressions only show when using these emotions,happy, sad, afraid/surprised, and angry/disgusted. For example, our eyes widen when we are afraid/surprised.

I found this interesting because I thought there were like 100s(over exaggeration) of different emotions you could feel. I thought you could just tell by just looking at someone what they are feeling. Even though you may feel like you are jealous your facial expressions don't truly show it. But how do you distinguish what facial expression goes with each emotion. Science seriously just blows my mind.

Amanda link

2/24/2014 08:23:15 am

This is a psychological article talking about how a mother's stress can affect their baby when the baby is in the womb. The article was saying there are two ways a baby can react to something new and how they react can determine the baby's mental issues and problems they may have when they get older. One way they could react is in joy and excitement, even curiosity. The other way they might react is with fear and confusion. The baby's who reacted with fear came from stressed out mothers. The main stressed out women are women who live in poverty and had their child very young.

I decided to read this article because my sister recently had a child. When she was pregnant with him she was under a lot of stress and when I saw the title of this article I wanted to find out what exactly would happen to him because of her stress. It was really interesting and kind of scared me a bit. I don't want my nephew to have bad anxiety or depression, I don't want him to live a difficult life because my sister was under stress during pregnancy. I also wanted to find out what to expect as he grows and some issues he may have. So, this article helped me out a lot and I think I will share it with my sister.

Jazzay Buncom link

2/24/2014 02:11:10 pm

Subcategory: GEOLOGY

It has just been declared that the oldest gem known to man right now is a piece of zircon said to be 4.4 billion years old. The tiny gem (about the size of two human hairs) was found on an outback sheep station in Western Australia, north of Perth, in 2001. The area has already been known for its ancient gem stones which date back to when the Earth's temperatures cooled and formed a crust.

I find it mind-boggling to think about there are still rocks on this Earth from billions of years ago. It seems like it would give me the chills to touch, or even look at, gems (or rocks) from such a long time ago. It also makes me think about the fact that some of the rocks that we touch have also been touched by people who have lived long ago. I feel in this way (through our Earth) we have some sort of tangible connection with people who have come before us, even people who have come from an extremely long time ago.

Monica S. link

2/26/2014 01:51:25 pm

This article is about NASA trying to find water vapors from other planets. They found one and its leading to another chapter about alien life. I was wondering if they were looking for water vapors because they are trying to find another planet where we can live or because they are trying to find another form of life(aliens). If its aliens then I believe that there are aliens by I don't understand why they want to find them so bad. But if its to find another plant we can live one I want to know why? is it because something is wrong with our plant? Is it because we cant live here anymore? Why is it they are looking for another plant like ours? This article brings up lots of questions

Diego Ruiz link

3/5/2014 07:26:23 am

This article is saying that usain bolts superhuman speed could alow him to fly like a bird in a wing suit on one of saturns moons. ''The world-record holding sprinter has reached top speeds of 12.27 meters per second, which would be fast enough for him to take off on Titan while wearing a regular wingsuit. Theoretically, the Olympic athlete would then be able to soar above the planet – without any need for propulsion.'' I found this hard to belive but still interesting

Jazzay Buncom link

3/7/2014 07:28:41 am

This is the video that I am posting for Unit 3: http://www.youtube.com/watch?v=SimFy9wOMXY

This video goes into detail about the concept of Density and is very helpful in understanding Density if it was still difficult to do after performing the Density Labs.

Rodrigo Perez link

6/15/2014 02:29:04 pm

Marine Biology

First reported in June of 2013 along the coast of Washington by researchers. Since then, the disease has been documented from Alaska to California and all the way to the East Coast, all the way up to Main. As a mysterious disease that is affecting starfish has increased significantly, killing starfish along the coast of Oregon. In early April the disease was said to be affecting only 1 percent of the starfish, until a few weeks past by and that number grew to 40-60 percent of the starfish. The mysterious disease tends to progress from no signs of physical behavior, to strange behavioral changes where the starfish collapse on themselves. The cause of this disease is unknown, though scientist are also looking at the possible chance that a underlying virus or bacteria is to blame for, or maybe something else like environmental stress where the water temperature or salt content, making the organisms vulnerable to it. If all of the starfish were to be extinct, their loss could have a huge impact because their keystone predators, meaning that their predatory activities shape an ecosystem.

I wanted to read this article because I heard about this outbreak on the news but never knew what affects it had until now. Finding this to be rather strange but unique because how can something like this happen? Where an unknown disease can come out of nowhere, immediately killing any living life.

Michael link

6/17/2014 11:31:53 am

In this article I read about how in Europe the water quality is getting worse and worse due to agriculture pesticides getting into the water when it rains. This reminds me of something similar that happened in the San Diego desert. 20 years ago there was many farms around the salton sea. One year it rained so hard that it washed all the pesticides down into the lake. To this day the lake is still nasty will a bunch of dead rotting fish around the bank. I hope this same thing doesn't happen to the Europe waters because I think it could affect the US if the water gets over to north America.

Julian Armijo link

6/18/2014 10:43:17 am

This article from Newscientist is about a star called the Eye of Sauron located in the southern constellation of Centaurus which is 4.4 light-years from Earth. From it explaining the picture that glowing ring is a dust ring, but one thing I'm wondering is why is it glowing that bright, shouldn't it be radio active? Could it be a star exploding?

Unit 3 - Measurement

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