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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 this could include something having to do with the projectile of bullets or weapons but should not focus on killing!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:

8/25/2007
//The article I chose for my blog is about a school official named Melanie Vickers. Melanie won a drawing to go into outer space and experience the feeling of zero gravity. Once in space, the rocket was planned to dive into 3 parabolas. The first one was called a Martian parabola; during a short period of time, Melanie was 1/3 of her total weight on earth. During the second parabola, Melanie was 1/6 of her total weight on Earth. For the next parabola, the group was instructed to lie down on the floor. Suddenly everyone started to float up into the air-- THERE WAS NO GRAVITY!// //This article relates to what the class has been learning in science because the space shuttle dives into parabolas. A parabola is the motion of a projectile while it is moving in the air. This motion is in the shape of an arc. The article also mentions gravity. If a projectile is thrown on earth, then it would eventually land on the ground. But if a projectile is thrown on the moon, it would keep on going until it hit something.// //-Rabiya S.// Holleran, Kelly. "School official describes time spent in zero gravity." __Charleston Daily mail__. 25 Aug 2007 <[|http://www.dailymail.com/story/News/+/2007081759/School+official+describes+time+spent+in+zero+gravity/>.]

//Comment 1:// I love your blog! I understand it very well. It has correct grammar, correct spelling, the length is perfect, and it is content. The first paragraph explains the article and the second paragraph told me how the first paragraph relates to what we learned in class. The last sentence was a little confusing because it’s a little off topic. You also used first person in the first sentence, other than that the rest was written in third person! Great Job! -Jennifer N.

Comment 2: You did a very good job on explaining this article. However, you used 1st person with your opening sentence, and your ending to your 1st paragraph was a little abrupt.But other than that, I really liked the way you wrote your article because you were very clear on saying how this realated to projectile motion Keep up the good work! - Ian B.

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9/24/2007
Reflect upon the mystery density cube experiment. You may write in first person. 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 very useful for this project. We had to make a hypothesis and do research. We also analyzed and concluded ideas from the data. This experiment was very difficult because the identity of the cube had to be guessed without much prior knowledge. It was very hard to decide the identities of the cubes because some of them were not known. The density is very important when finding the identity of an unknown substance. It is important because different cubes had different densities. The densities were different because each cube had a different mass and volume. -Rabiya S.

//Comment 1: Great job! Your paragraph was very detialed when explaining your opinion about the experiment. But I noticed that when you were stating your opinion in your last sentences, the next sentence was exactly the same, but just in different wording. But other thatn that, you did a good job explaining your thoughts about the cube experiment. Keep up the good work!// - Ian

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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:// A flame test is a qualitative test that discovers the identity of a metal which is in an ionic compound. This relates to the use of chemicals in fireworks because in a flame test, you visually discover the identity of the metal. The color of the light it produces is used in the process of discovering the identity. By looking at the color of the firework, you are able to identify the compound or element. -Rabiya S. Clark, Jim. "Flame Tests." __Flame Tests__. 2005. 16 Oct 2007 <[|http://www.chemguide.co.uk/inorganic/group1/flametests.html>.]

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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:// The sodium is being dropped into the chlorine. The sodium and chlorine form an ionic bond which means that they give and take electrons. The sodium atom is then charged negatively. The chlorine atom is then charged positively. When the sodium reaches the bottom of the chlorine beaker, the sodium bursts into flames. This reaction makes a new compound called NaCl (sodium chloride) which is table salt. NaCl that is formed is hard, white, and solid. The compound formed at the end is made up of white dots. -Rabiya S.

//Comment 1:// Rabiya from reading your blog entry it shows that you have understood all of that we just saw. You have an excellent description of why and what happened. What could use a little improvement was how many electrons where shared ect. Other then that i think it was excellent, that is why I am giving you an A. - Nathan N.

Comment 2: Rabiya! Wow! I love your blog entry! I agree with Nay Nay, you have an excellent description! I am giving you an A! I think it is fine the way it is! Maybe you could use different grammar to make it sound better. You clearly understand the reaction! ~ Jennifer N.

Entry Re-write- The sodium gets plunged into the full beaker of chloride. The sodium and chloride form an ionic bond which means that they are giving and taking electrons from each other. The sodium atom is then charged negatively and the chlorine is charged positively When the sodium reaches the bottom of the chlorine beaker, it bursts into flames. The reaction forms a new compound called NaCl which is sodium chloride. NaCl is also known as table salt which is the kind of salt that people eat all of the time! The NaCl compound is a hard object that is white. In the simulation NaCl looks like a white blob made up of dot like particles. -Rabiya S.

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 project was the projectile motion experiment. I really enjoyed learning about this topic because we learned about how objects traveled in the air. This was also a lot of fun because we actually got to shoot nerf guns through the air and observe them. This really helped in me to understand the concept of projectile motion. I am very happy that we got snakes because it is very fun to watch what they do. I think that I excelled at the projectile motion experiments because I took really good observations. I can improve by putting more time into the homework. This trimester was very fun. -Rabiya S. //Comment 1: Your contributions to class were extremely helpful. The questions asked by you helped the others learning experiance and your concentration in group projects made the work all the more better and fun.// -David J

Comment 2: I think that your performance in class was very nice, you asked good questions. While in group you always helped and took part, you weren't a slacker or a boss, which is always nice to work with. -TaZ

12/18/2007
Our next unit is about electricity and electronics. In first 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, etc. what would you like to research or investigate?

Entry: I know that electricity provides light in your home, and electricity plays a major role in everybody's life in this time. Electricity is almost everything we see or do. I don't think that I could imagine life any other way. I have a lot of questions about electricity. How does electricity travel so fast through wires? And, how do you get electrocuted? I would like to investigate and learn more about computers and how they work. I wonder hoe they work so fast and efficiently. I want to learn about the structure of light bulbs and how they are made. I would be interesting if we could take apart a light bulb and look at the little wire thing inside.

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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.]

Here is an example statement: "Graph 1 shows that from 1960-1965 there was a steady increase in the use of coal as a source of electricity. It rose from roughly 0.2 trillion killwatthours to 0.5 kilowatt hours.

Entry: The electrcity source that has increased the greatest amount in this graph would be Coal. Coal came from being 0.2 trillion killowathours in 1950. Now it is at about 1.5 killowathours in 2005. It has increased 1.3 killowathours over the last 55 years. This means that we are gradually starting to use coal as an energy source even more than we used to.

Petroleum and Natural gases are something that contributes to global warming. Nuclear and electric power also contribute to global warming. This is because natural gases and petroleum are made up of carbon dioxide gas which is said to cause global warming along with many other gases. Petroleum is used to make many types of fuels including: jet fuel, diesel fuel, and natural gases. The elevated uses of greenhouse gases are the main contribution to global warming. Nuclear Electric power is also a cause of global warming, but they are not to blame as much as fossil fuels are.

The majority of the energy sources on the graph are increasing or staying the same within this time period. The use of petroleum and natural gases were at a low during the 1980's. Hydroelectric power stayed about the same. Nuclear electric power was slightly increasing. The uses of the energy sources were a lot lower than in 1950's and they stayed about the same until 2005. Except for coal, which has made major increases to this day.

"Natural Gas." Wikipedia__. 02 Jan 2008. 4 Jan 2008 <[|http://en.wikipedia.org/wiki/Natural_gas>.]

"Carbon Dioxide & Greenhouse Gas."__ Carbon Dioxide, Greenhouse Gas: Global Warming__. 2007-2008. 5 Jan 2008 <[|http://www.lowimpactliving.com/pages/your-impacts/global-warming1?gclid=CM7onpHi3JACFQO0HgodoEdGOw>.]

"Petroleum."__ Wikipedia__. 03 Jan 2008. 5 Jan 2008 <[|http://en.wikipedia.org/wiki/Petroleum>.]

"Gobal Warming."__ Wikipedia__. 05 Jan 2008. 5 Jan 2008 <[|http://en.wikipedia.org/wiki/Global_warming#Causes>.]

"Nuclear Power."__ Wikipedia__. 05 Jan 2008. 5 Jan 2008 <[|http://en.wikipedia.org/wiki/Nuclear_power>.]

Comment 1: Hey! You did really good on your entry! You wrote in third person throughout the whole paragraph, so great job! As for the rest of your scientific writing, you did well. The only thing I noticed was that the paragraph looked a bit rushed. You followed all of the guidelines though. In places the paragraph could be a bit unclear, like where you said "Hydroelectric power stayed about the same", and I didn't know exactly what that meant. Other than that, the paragraph was fabulous! - Anna

Comment 2: You did a good job. You wrote good information, and you didn't lean more on one subject. You wrote in third person, you used and order that made sense. You wrote at least five sentences. And you put everything on the graph. I really can't find anything wrong with your paragraph. Great Job. A+ -Clayton__

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: There were four main sources of energy between 1972 and 1985 as seen in Graph 1. There is coal, petroleum and natural gases, nuclear and electric power, and hydroelectric power. The energy sources in these years either increased in use or stayed the same. Coal is a great example because it never had a downfall of use and it kept increasing. In 1972 coal was at about .8 trillion killowat hours and in 1985 it was at about 1.4 trillion killowat hours. Petroleum/natural gas and hydroelectric power were sources that basically stayed the same in this time. Petroleum/natural gas started out in 1972 at .6 trillion killowat hours and didn't raise at all after that because it had a downfalll in 1983. Hydroelectric was also the same after an early downfall because in 1972 it started out at .2 trillion killowat hours and in 1985 it was also at .2 trillion killowat hours. Nuclear electric power was increasing during this time, but not as much as coal. Niclear electric power started in 1972 at 0.1 trillion kilowat hours and in 1985 it was at .4 trillion killowat hours. This wasn't a dramati icnrease, but it stayed at a slow and steady increase. During this time coal was the energy source that increased the most and ended up in the most use.

Comment 1: Ok, great job with your blog!!! All I saw that could be improved was that the proper way to spell kilowatthours was with no space and only one "L" in kilo. Also, in your second to last sentence, there are some spelling errors. Overall, great job!!! It looked great scientifically! You followed the example paragraph really good!!! - Anna =]]]]

Comment 2: Great job on the blog entry!!! You followed exactly what JT's model blog said. There are some spelling errors. I don't understand the second sentence from the last. Also in kilowatthours there are two t's. Rabiya, another thing I would suggest is to look back at the instructions and re write you blog so that it is in the years of 2000-2005! You are a fantastic scientific writer! ~ Jennifer N. :)

Re-Entry: There were four main sources of energy between 2000 and 2005 as seen in Graph 1. There is coal, petroleum and natural gases, nuclear and electric power, and hydroelectric power. The energy sources between these years either increased in use or stayed the same. Coal is a great example because it never had a downfall of use and it kept on increasing. Although it had a peak of use in 2000. In 2000 coal was at about 1.7 trillion kilowatthours and in 2005 it was at about 1.8 trillion kilowatthours. Petroleum/natural gas and hydroelectric power were sources that basically stayed the same in this time. Petroleum/natural gas started out in 2000 at .6 trillion kilowatthours and it raised a little bit before 2005 in which it was. 7 trillion kilowatthours Hydroelectric power also stayed the same after an early downfall because in 2000it started out at .2 trillion kilowatthours and in 2005 it was also at .2 trillion kilowatthours. Nuclear electric power was increasing during this time, but not as much as coal. Nuclear electric power started in 2000 at 0.7 trillion kilowatthours and in 2005 it was at .8 trillion killowatthours. This wasn't a dramatic increase in nuclear electric power, but it stayed at a slow and steady increase. During this time coal was the energy source that increased the most and ended up in the most use.

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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 unit of power that measures energy. The amount of electrical power used in a circuit can be calculated by multiplying the voltage x current. If a lamp as a 200 watt light bulb and it was used for 24 hours, it would use 4.8 kilowatt hours. This is because 24 and 200 get multiplied by each other. This is done to find out how many watts are used in this time period. The answer is 4800 watts. Then, to find out the amount of kilowatt hours that were used, 4800 watts gets divided by 1000. This is because a kilowatt is 1000 watts. The answer is 4.8 kilowatt hours. Therefore, there would be 4.8 kilowatt hours used if a lamp with a 200 watt light bulb was left one for 24 hours straight.

-Rabiya S.//

Comment 1: I like the way you explained how to find how much kilowatt hours were used! I understood it well, and you wrote in 3rd person! One suggestion is that maybe you should start a sentence without using the word "this". Overall I enjoyed reading your blog entry and I understood it! :) ~ Jennifer N.

Comment 2: "//multiplying the voltage x current."- may want to include units here; "////in this time period."- define; why don't you add how much the cost would be for such an energy expenditure- look up cost per kilowatt hour... Great Job Overall. - Jos.//

Re Write:

//A watt is a unit of power that measures energy. The amount of electrical power used in a circuit can be calculated by multiplying the volts x amps. If a lamp as a 200 watt light bulb and it was used for 24 hours, it would use 4.8 kilowatt hours. This is because 24 and 200 get multiplied by each other. This is done to find out how many watts are used in 24 hours. The answer is 4800 watts. Then, to find out the amount of kilowatt hours that were used, 4800 watts gets divided by 1000. This is because a kilowatt is 1000 watts. The answer is 4.8 kilowatt hours. A kilowatt hour would cost .2 cents. So, 4.8 kilowatt hour would cost 24 cents. Therefore, there would be 4.8 kilowatt hours used if a lamp with a 200 watt light bulb was left one for 24 hours straight.

-Rabiya S.//

2/28/2008
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:

I learned a lot this trimester in science with my classmates. I learned about electricity, projectile motion, chemistry, atomic structure, and how to build circuits. I would like to improve on my studying ability by studying harder for each quiz. This is because sometime I don't get great grades when i don't study a lot. Also, I would like to improve on my scientific writing. The snakes are a good addition to our science class because it is really cool to see them grow! I enjoyed using the pH sensor because I though the data worked. I also enjoyed working with the circuits, especially when we could choose our own circuit to build. It was fun because it was very suspenseful to see if the circuit work actually work. Overall, I had a good time in science class. -Rabiya S.

Comment 1: Rabiya, great job in science this trimester! I thought that you were a huge help to me. Every time we did an experiment together, I could count on you to help me. Also, whenever I didn't understand something, you helped me to understand it better. I think you're awesome when it comes to science, so great job this trimester! Thanks for being such a great help! //-Alyssa P.//

Comment 2: Rabiya, I enjoyed working with you this trimester! You always answer my question every time! I like working with you because you cooperate with the group! :) You are funny and make science more fun for me!!! You rock and you're an awesome friend!!! - Jennifer N.

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4/22/2008
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?

Entry:

A human being is different from a robot because they are more delicate and they have better functioning minds of their own. Humans can to anything that their brain tells them to do and robots can only do what someone programs them to do. But, also robots can be as smart as possible because they have large programming space. One would not want to see a robot created that would take over all humans jobs because robots can do it more efficiently. If robots take over all of the jobs, humans would be out of work. Also, one person on the robotics website said that humans would be robots on day. Even though robots could be good for working in factories, they should not take over the lives and work of humans.

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