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8/24/2007
Find an web article from a reputable news website that contains information about any type of projectile. The article must relate to some science topic (not war, guns, etc.) Write a short (1 paragraph) summary of the article and then describe how anything you have learned in the past week about projectile motion might relate to it (second short paragraph). Finish with a citation to the web article. Enter all of this under "Entry" below.

//Entry:// An article was read about a state-of-the-art ballistic range camera that can catch a photo traveling 4000 meters per second in a blink of an eye without any blurs or scratches. The photo is not only blur-free, but also it is at the highest quality a camera can be. The quality of the camera can reach a resolution of 11 million pixels. This is just as good as a film quality as you would see in the movies. This new camera is going to increase one’s knowledge of projectiles by countless numbers. One should be greatly honored to own a camera like this one. If a class were doing an experiment on projectile motion, this camera would be a great addition to the class. When firing a dart gun at different angles, one could take pictures of the dart in the air and calculate its highest point. This would also be a great addition to the final project. One would be able to post high-resolution pictures of the experiment on the final project. Chan, Wai. "Digital Imaging for Ballistic Proofing Ranges" __Advanced Imaging Pro__ Copyright: August 22 2007. Acessed: August 26 2007 http://www.advancedimagingpro.com/print/Advanced-Imaging-Magazine/Digital-Imaging-for-Ballistic-Proofing-Ranges/1$4410.

//Comment 1:// I liked what the article was about, and the fact that you related it to the class and using projectiles was very resourcful and useful. - Nikki L. Comment 2:

9/24/2007
Reflect upon the mystery density cube experiment. Create a long paragraph addressing these questions:

1.) Was the scientific method necessary in this experiment? If not, why? If so, why? 2.) What made this experiment difficult? or was it easy? 3.) Is density very important in finding the identity of an unknown substance? . //Entry:// The scientific method was used in the density cube experiment. The first thing that was done was to define the problem. The problem was to find the densities of the cubes 1-10. To do this one needs to observe research, make a hypothesis, and finally, do the experiment. All of these were completed in the experiment. Using the scientific method made this experiment fairly easy. However, there were some difficult parts such as finding the true densities of each element and citing the sources. Finding the density of each cube makes the experiment so much easier because all one would have to do from there is compare the densities of a predicted element to that cube.

//Comment 1:// //The last sentence should not go after the difficulties. It should go after the part about the scientific method. The rest of your paragraph is very good. It shows what you are thinking and it also explains why you think that. I agree completely about what you said. I too think that it is easier to find the density of an object before deciding the final decision. Finding the true density of the object was hard, but for me I did not find citing the sources was hard. Good job!// Alex Comment 2:

10/16/2007
What is a flame test in your own words? How does this relate to the use of chemicals in fireworks? Make sure to include your MLA citations you may not use Wikipedia! . //Entry:// Flame tests have to do with a compound and its metal ions inside of it. Flame tests identify the presence of these small ions by color. However, not every ion gives away a color. For example, you would put a compound or element substance on a clean metal stick. You would then put the stick in the fire. Depending on what color the fire turned, you know what element you chose. Different elements and compounds have different colors. For example, if you put Na (sodium) on a stick, and put it in fire, the fire would then turn a strong persistent orange. This relates to uses of chemicals of fireworks because creators of fireworks put different chemicals in the creation so that the fireworks have color. Again, depending on what kind of chemical they use, that’s the color of the firework. Citation: Clark, Jim. "Flame Tests." __Chem Guide__. 2005. 16 Oct 2007 <[|http://www.chemguide.co.uk/inorganic/group1/flametests.html>.]

//Comment 1://

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11/1/2007
Go to this site: [|http://www.visionlearning.com/library/module_viewer.php?mid=55 .]Click on "Watch the Reaction with Sodium and Chlorine" In your own words and in third person, create a blog entry describing the reaction and explaining what is happening in terms of the bonding. Write a long paragraph. Explain in detail.

//Entry: A reaction was tested between Na (sodium) and Cl (Chlorine). Together, the two made an ionic bond. Sodium is a solid, silver element that was dropped into a Chlorine liquid that is green and toxic. The two then developed the ionic bond that was destined to happen. Together the two formed a new compound called NaCl. One finds this compound in everyday life on one’s dinner table. This substance is table salt.//

//Comment 1:// You did a good job explaining what compound was made. There are a few minor grammar mistakes, such as "the two made an ionic bond", it should be "the two make an ionic bond". Also, you repeated a lot of stuff just to make it longer. For example you wrote that it was ionic bond two times. It would be better if you explained what the electrons did. How many electrons moved? Were they positively or negatively charged? I would give you a B, because you could have gone more in depth. Your spelling is very good. - Adrienne B.-K.

Comment 2: The length of your entry was pretty good, and your spelling was good. A few things are that you repeated some sentences to make the entry longer. You could have dived deeper into what happens in the reaction. How the electrons act and how it makes the elements bond. I liked how you explained the abbreviation of the elements. Overall, i'd give you a B. -Richard H.

//Entry 2:// A reaction was tested between Na (sodium) and Cl (Chlorine). Together, the two made an ionic bond. Sodium is a solid, silver element that was dropped into a Chlorine liquid that is green and toxic. The two then developed the bond that was destined to happen. The sodium gave up an electron to the chlorine which made sodium the negative, because of its electron being shared, and the chlorine was then a posotive charge. Together the two formed a new compound called NaCl. One finds this compound in everyday life on one’s dinner table. This substance is table salt.

**11/08/2007**
What was your favorite project, experiment or topic this trimester and why? (projectile motion, density cube experiment, podcasts, chemical reactions, flame tests, etc.) You can also comment about the snakes. What do you think that you excelled at this trimester? How could you have improved your performance in Science 7? (Make sure to check your spelling and grammar).

//Entry:// //My favorite experiment of the first trimester was the flame test experiment. I loved to find different elements and put them in fire to see the fire change a different color. When the flame changed color, it was really cool to see. I never knew that it was possible to change the color of fire. I think I excelled very well in the homework. Also, I did fairly well in the quizzes during the trimester. However, next trimester I hope to excel in the lab reports which is what really brought down my grade. I failed to follow directions on that assignment. Next trimester I will stride to follow directions.//

//Comment 1: I really don't see any problems. Well written Cannon, well written!// Connor

Comment 2: Bravo. a spectacular paragraph that represents all thats good about the english language. Cannon, you have a dear place in my heart and i will forever Appreciate you in this class. You were always willing to lend a helping hand when i was stuck on something, or didn't understand.

**12/18/2007**
Our next unit is about electricity and electronics. In third person write a long paragraph about what you know about electricity and what questions you might like to have answered in our electricity unit. If you could investigate any subject area related to energy in the home, electricity, electronics, computers, what kind of investigation would you carry out?

Entry: I know little about electricity and how it functions. All I know about it is the fact that it can power systems and objects up. It can light a light bulb up and can turn on a television. However, I would like to know how the whole process of electricity works. Also, how was it created? I know that it is a big thing in today’s culture and technology and that it would be very hard to anything without it.

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1/3/2008
Our next unit is about electricity and electronics. Observe the following graph, Graph 1. Write at least five sentences for each of the following questions. Write in third person. Directly cite data and identify the graph (1). 1.) Which electricity source in the US has increased the greatest amount over the time period shown in the graph? 2.) Which of the sources listed below directly contribute to global warming? Provide evidence and explain using the Internet (MLA citation). 3.) Describe the overall trends from 1972 to 1985 regarding the US's sources of electricity. [|This graph can also be seen at this LINK.]

Entry: 1. The electricity source in the US that has increased the greatest amount over the time period shown in the graph is coal. From 1949 to 2006, coal has shown increasingly large amounts of kilowatthours. In that time period, it has escalated from about 200 billion kilowatthours to about 1700 billon kilowatthours (1.7 trillion). The increase margin is close to 1.5 billion kilowatthours! Graph 1 gives one the information by providing the bold, plain, black line with the word coal above it to state what the line represents.

2. The source that contributes most to global warming on graph 1 is coal. Coal accounts for 93% of the emissions from the electric utility industry. Because coal is a kind of fossil fuel, it releases a special kind of pollution into the air. The pollution is Co2 known as carbon dioxide. Carbon dioxide contributes to global warming which makes coal a big source for global warming. __Mirabile, Joe. "Causes of Global Warming."__ EcoBridge__. 4 Jan 2008 <[|http://www.ecobridge.org/content/g_cse.htm>.]

3. Once again, coal was the leading escalation from the year 1972 to 1985. It increase from .6 trillion kilowatthours to 1.4 trillion kilowatthours. Also nuclear electric power made its first increase in 1972. It went from basically nothing to about .4 trillion kilowatthours. Hydroelectric power stayed the same at about .25 trillion kilowatthours. Plus, petroleum and natural gas had its first big decrease from .7 trillion to .4 trillion kilowatthours.

Comment 1: Overall you had a great blog entry for question number 3. The first thing i noticed was that you left out a "d" on increased in the second senctence. All the facts that you gave were backed up by the graph which was very impressive. You followed the question answering all the noticable trends which is good! All your data was appropriate and I personnally think it was right. Good Job! -Connor

Comment 2: I would say that you did a very good job. The writing is in 3rd person which is good. The only grammer error i could find was thhat you left out a d on increase in the seconed sentence. You need to say "As seen in Graph 1". You backed everything up, so once again, good job!__

__1/8/2008__
__ Please read the paragraph below about energy use to create electricity from 1972-1985 in the US. Observe that the graph is referred to, there is an introductory statement, supporting statements are backed up with data, and that their is a concluding sentence. This would have been a well written paragraph for question 3 in our previous blog entry.

"As seen in Graph 1, there were four sources of electricity production in the US from 1972-1985. These sources were coal, petroleum/natural gas, nuclear electric power, and hydroelectric power. From 1972-1985, the US needed greater and greater production of electricity from these combined resources. This best example of this is that during these years, coal increased from 0.5 trillion kilowatthours to roughly 1.5 trillion kilowatthours. During this same time period hydroelectric sources remained approximately the same at 0.3 trillion kilowatthours. There was a slight increase in nuclear electric power sources from 0.1 trillion kilowatthours to 0.3 trillion kilowatthours during this same time period. Finally, petroleum and natural gas showed the greatest amount of fluctuation during this time period staying about the same from 1972-1980 at 0.4 trillion kilowatthours but then deceasing to 0.3 trillion kilowattthours by 1985. Thus, although greater and greater amounts of resources were needed to produce electricity during this time period, coal accounted for the greatest increase in use." - JT

//**Using the above paragraph as a model, describe the changes in electricity production sources from 2000-2005. Make sure that you reference the graph (Graph 1). Make sure all statements are backed up with data. Make sure you have an introductory sentence and a concluding sentence that provide an overall summary/statement.**//

Entry: As seen in Graph 1, there were four major sources of electricity production in the US in the time period of 2000-2005. The sources were coal, nuclear electric power, petroleum and natural gas, and hydroelectric power. In the time period of 2000-2005, the US needed to expand their production of the four combined resources. The energy source that was most successful in Graph 1 was coal which increased from 0.5 trillion kilowatthours to approximately 1.5 trillion kilowatthours. Also during this time period, Graph 1 supports the data that hydroelectric sources remained close to the same at 0.3 trillion kilowatthours. As for the remaining two sources, there was a slight increase in nuclear electric power that went from 0.1 kilowatthours to 0.3 kilowatthours and petroleum and natural gas had its first major decrease from going 0.6 kilowatthours to .4 kilowatthours during the 2000-2005 time span. Overall, in the time span of 2000-2005, coal accounted for the largest increase out of the four major sources with .2 trillion kilowatthour span.

Comment 1: First of all, I was a little confused by the time span that you wrote on. Secondly, you spelled petroleum, source, successful, approximately, remained, and span wrong. You did a good job of addressing the graph when you were talking about a new energy source. You also did a great job of writing evidence for each source and then also writing how many trillion kilowatthours they used. Your introductory sentence is good, but your concluding sentence could use a little more detail and evidence. Good Job. -David

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Re-Entry:__

__2/05/2008__
__What is a watt? How do you calculate the amount of electrical power that is used in a circuit? Finally, if a lamp with a 200 watt lightbulb burned for 24 hours straight (you forgot and left it turned on), how many kilowatt hours would it use? Make sure to write in complete sentences and in third person. Explain how you calculated the amount of kilowatt hours that would be used in the question above.

Entry: A watt is a measure of electric power. To determine the number of watts in a circuit, you would use the equation Power= Voltage*Current. One would just substitute the numbers in to the appropriate place. If a 200 watt light bulb burned for 24 hours, one would multiply 200 watts by 24 hours to get 4800 watthours. If one is trying to get kilowatthours, and kilo is a prefix for 1000. To find kilowatthours, one would divide 4800 watthours by 1000 to get 4.8 kilowatthours. The answer is 4.8 kilowatthours for that one single lamp. If one were to do this, and it would cost one 10 cents a kilowatthours, this would cost one 48 cents. It adds up very quickly.

Comment 1: Good content on your blog entry and good steps in your problem. Good writing in third person but I think you could have made your entry flow a little bit better. You used the word "one" about 6 times in your article. You are correct on your answer for the problem and you are also correct on how much it would cost someone to run a light bulb for that long. Good Job - David

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2/28/2008
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This trimester we started by finishing up our chemistry unit by doing an acid/base experiment. After this, we started our electricity/electronics unit in which we first made basic series and parallel circuits with buzzers, speakers, motors, and lights. We applied ohm's law to these experiments. Following this, we started working on the Radioshack Electronics Kits where we made complex circuits that had a variety of functions- blinking LEDs, screeching speakers, analog to digital converters, etc. The technology we used this trimester included the pH probes that we connected to our computers to get the pH of household chemicals, using the wiki to create an class test review sheet, the Radioshack Electronic Kits, and creating collaborative lab reports in the wiki for our electronics unit (instead of a formal lab report).

__//In this blog prompt, please write a paragraph long entry (5-6 sentences with a intro and concluding sentence) that addresses what you enjoyed during this trimester and what you have learned. You can also comment on what you would like to improve upon for next trimester or what was difficult for you. Feel free to comment on our snakes- Peppermint and Diablo if you would like to as well as the technology that you enjoyed this trimester. Please check your spelling and grammar as this blog entry may appear in your end of trimester comment. You may want to write it in Microsoft Word to check the spelling, etc. and then copy it in the blog.// //__//

Entry: This trimester was a very successful trimester that I improved on much more than last trimester. Last trimester, I failed a major lab assignment worth a lot in my grade. I could not fully improve my grade high enough to get it back to an A. However, this trimester, I’ve done a great job in getting my grade back on track. I’m very happy on what has gone on this trimester, especially including the electricity test which I got a 97% on. Building the circuits was a ton of fun, especially the free choice of circuit which we got to do on our final few days in science. Overall, it was a great trimester and I hope to do the same next trimester.

Comment 1: Dear Cannon, You have made this Science 7 experience feel like a wonderful jog over a rainbow. You have truly made my life of science better by contributing with your large brain to all of the components of our labs and finally reaching that pot of great gold. I thank you for exceedingly helpful comments to all of my ponders. Your vibrant personality is always welcomed with a warm cup of coffee and a crescent roll in my heart. For all of the above, I thank you. =)!!!!

Your Love, Connor

Comment 2:

 Go to: [|The Tech Museum: Robotics]. Spend 10 minutes browsing the information and museum. Answer the following blog prompt in complete sentences and in third person. Create a full paragraph. If in the future machines have the ability to reason, be self-aware and have feelings, then what makes a human being a human being, and a robot a robot? Explain. Are there any kind of robots that shouldn't be created? Or that you wouldn't want to see created? Why?
 * 4/22/2008 **

Entry: One can never replace a human with a robot. The way humans are born will never change, the way humans grow, react, and their basic needs. That is what makes them different from a robot that will ever be created. If there were to be a robot that could be self-aware and have feelings, this would be a creation one would not want to see. This kind of robot could become uncontrollable and do bad things to the world if it wished too. However, humans will always grow, die, and need their basic needs. Robots could never need anything like that. That is what will always separate the two no matter what.

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