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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:// A European Deli on Grand Avenue, a dirty and unsafe place, was being robbed so Ziola, the deli owner, had to protect her kids and herself. She didn't see any weapons so to protect them she threw a muffin at the robber. This made the robber run off and he got arrested but it didn't stop all of the other horrible actions happening around the deli. There have been many Grand Avenue owners but they have never cleaned up the place or shooed away the homeless people that live around there. The people that own stores in Grand Avenue want it to be cleaned and fenced off.

This article has to do with projectile motion because when she threw the muffin, she had to have the right angle and velocity to be able to hit the robber or to get close enough to scare him off. It didn't have to do with air resistance or gravity. It had to do with the angle and the velocity in which she threw the muffin.

//Klein, Liese. " Can Grand Ave. Get Its Groove Back?." __08/20/2007 Can Grand Ave. Get Its Groove Back? Business New Haven__. 08/20/2007. TMB Certified Public Accountants. 26 Aug 2007 <[|http://www.conntact.com/article_page.lasso?id=41223>.//]//
 * Citation:**

Comment 1: I really like how you used the third person through out the entry. I was a little confused around the end of the first paragraph but overall you used great spelling and vocabulary. You follwed all of the guidelines including the citation which I accidently left out at first. The length of your entry is pretty much the perfect length because it is just long enough to give enough information, but not too long to make it a hassle to read. Overall, it was a great article response relating to the topic we are going over in class. It was a satisfying experience! Great job! -- Connor 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:// In the density cube experiment, the scientific method was necessary because when each section of the scientific method was found it led onto the next section. In the end, every little bit led up to the final answers. The experiment wasn’t exactly hard; the only part that was struggling was how we had so many materials but only 10 cubes. The experiment took a lot of time, information, and effort to find out the final answers. When the identity of an unknown substance needs to be found, density is very important because you can find the density of the cubes and of the materials which in the end leads to the matching of the density’s to get the final answer.

//Comment 1: Your overall paragraph is extremely good =]. I like how you worded everything and how you put it in the paragraph. I dont exactly agree on that you need the scientific method. Say that you had the density and then the volume, you could get the mass, which would lead you on to something else. Other than that part, i agree on everything else. I think you did a great job, and put alot of hard work into your writing. Great Job-Brittany// //Comment 2://

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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:// The flame test is finding out the color properties of a certain chemical. When the chemical is put into the fire using the wire, the color the chemical turns out with be found. This has to do with the chemicals in fireworks because they have to use different chemicals in the fireworks to get the different colors in the fireworks. When the different chemicals are used, it puts a lot of color into a firework show. Some chemicals may have similar colors but they all range throughout the colors.

Clarck, Jim. "Flame Tests." __Flame Tests__. 2005. 16 Oct 2007 <[|http://www.chemguide.co.uk/inorganic/group1/flametests.html>.] <-- used to get a better idea about the flame test

//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: When the Sodium is dropped into the Chlorine gas, the Sodium catches on fire. The Sodium caught on fire because an ionic bond was made between the Sodium and Chlorine gas. An ionic bond is made because both of the Sodium atoms lose an electron and it goes to the Chlorine atoms. After the Sodium and Chlorine gas were mixed, NaCl (Table Salt) was made. This mixture was a chemical reaction.

Comment 1: Good spelling on this entry. The content was also good on this. Maybe a little more detail would be good. Other than that it was good. I give you an A because of the content and length but overall it was great. Eric M

Comment 2: You blog entry is very good. The length of the blog is a little short even though you have good information. I think to improve your paragraph you could explain more why it makes an ionic bond and explain more about what is happening. I would give you an A- because you have good information but you could explain more in depth what you think. - Caroline H

Entry 2: When the Sodium is dropped into the Chlorine gas, the Sodium catches on fire. The Sodium caught on fire because an ionic bond was made between the Sodium and Chlorine gas. An ionic bond is when an atom gives an electron to another atom. I would say that an ionic bong happened because in the experiment, both of the Sodium atoms lose an electron and it goes to the Chlorine atoms. After the Sodium and Chlorine gas were mixed, NaCl (Table Salt) was made. This mixture was a chemical reaction because two chemicals had a reaction.

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 we have done this trimester was the podcasts. I liked doing the podcasts because it is a fun way to learn and it was something I learned that I will use often.I think I excelled at learning more about science and getting better grades on my quizzes. I definitely applied myself more. To improve my performance in Science 7, I should have studied more and learned the material a lot more thoroughly. Although I think I did better this trimester I just did okay in the long run.

//Comment 1:// You have perfect grammar =] -Brittany W.

Comment 2: I appreciate the fact that during this trimester coming into school wouldn't be so bad because every day I would see a happy face. Science7 was more fun having friends and friendly faces in the room when i would walk in. It was also nice having a joke or two to laugh at when you're not having a good day. ;) kki L

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, what kind of investigation would you carry out?

Entry:

Comment 1:

1/3/2008
Our next unit is about electricity and electronics. Observe the following graph, Graph 1 and write an analytical paragraph describing what it means. Make sure to address what trends are observed; how things change over time, etc. Write at least five sentences for 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:

The electricity source that has increased the most over time is coal. Seen in Graph 1, during the year 1950 Coal was at about 0.0 trillion kilowatt hours and in 2005 it is about 2 trillion kilowatt hours. Throughout the years, while Coal was increasing in energy, it didn't have any drastic downfall. Looking at Graph 1, Hydroelectric power has not had increased much over the years 1950-2005 unlike Coal. Some of the other electricity sources have changed but Coal has definitely changed the most.

Coal is the electricity source that has mostly contributed to Global Warming. I know this because in the link listed below, it states that Global Warming causes Carbon Dioxide. Also, in the second link listed, it states that Coal contains Carbon Dioxide. This leads up to the knowledge of Coal being part of Global Warming because the Carbon Dioxide from Global Warming is provided by Coal. Coal is emitting its Carbon, which goes to what is making Global Warming, which makes the air have Carbon Dioxide.

//Scheffelin, Tom. "Global Warming Causes Carbon Dioxide- 11/5/2007-Design News." __Global Warming Causes Carbon Dioxide__. Reed Business. 4 Jan 2008 <[|http://www.designnews.com/article/CA6493634.html?industryid=43656>.]//

//Juarez, Michael. "EcoBridge." __EcoBridge__. 5 Jan 2008 <[|http://www.ecobridge.org/content/g_cse.htm>.]//

As seen in Graph 1, the overall trends from 1972 to 1985 are that the kilowatt hours are raising and that the electric sources kilowatt hours are overlapping. In 1972, the Nuclear Electric Power kilowatt hours begin to raise. In 1983 all of the sources overlap in kilowatt hours because some are raising, some are decreasing, and some are staying the same. The source that is dropping the most is the Nuclear and Petroleum Gas, this decrease in hours occurs in 1984. The electric source that shows the greatest increase would have to be Coal. Between the years of 1972 and 1985, this source raised 0.7 trillion kilowatt hours. This is not as high as it could/should go but it was the greatest increase for those years and this was the source that ended the highest and increased the most.

Comment 1: Good job on staying in third person. All of your information is correct, and you refer to the graph. You used data from the table and stated that in your paragraph. You did a good job on answering what the question that was asked. The only thing I do not understand clearly is your last sentence. Maybe if you could explain it better, that would be good. Your overall paragraph was great! -Brittany W.

Comment 2: "As seen in Graph 1 GOOD, the overall trends from 1972 to 1985 are that the UNITS kilowatt hours are raising and that the electric sources kilowatt hours are overlapping DATA, EVIDENCE. In 1972, the Nuclear Electric Power kilowatt hours begin to raise DATA. In 1983 all of the sources overlap in kilowatt hours because some are raising, some are decreasing, and some are staying the same SPECIFIC DATA COMPARING. The source that is dropping the most is the Nuclear and Petroleum Gas, this decrease in hours occurs in 1984 SUPPORTING DATA. The electric source that shows the greatest increase would have to be Coal. Between the years of 1972 and 1985, this source raised 0.7 trillion kilowatt hours. CLARIFY AND PROVIDE AN OVERALL SUMMARY SENTENCE. This is not as high as it could/should go but it was the greatest increase for those years and this was the source that ended the highest and increased the most." - jt

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 gGraph 1, there were four different electricity sources in the United States that were changing from the years 2000-2005. Graph 1 shows that in 2001 Hydroelectric Power from about 0.2 trillion kilowatt hours to about 0.1 trillion kilowatt hours WORDING and it shows that in 2003, Nuclear Electric Power stayed basically the same DATA. There was no drastic change in either of these sources. In graph one it shows that Petroleum and Natural Gas had a slight change in TRILLION kilowatt hours over the years 2000-2005, it was not a drastic change REDUNDANT but it changed more than Hydroelectric Power and Nuclear Electric Power. In graph one, it shows that Petroleum and Natural Gas went from about 0.7 trillion kilowatt hours in 2000 to about 1.0 trillion kilowatt hours in 2005. The trillion kilowatt hours increased 0.3 trillion kilowatt hours. This was a pretty good BE SPECIFIC increase for these gases in five years. The highest increase of trillion kilowatt hours was with the electric source Coal. Graph one shows that in 2000 Coal started at about 2.0 trillion kilowatt hours and ended with about the same amount of kilowatt hours in 2005. Even though the amount of kilowatt hours didn't move, this doesn't it didn't go up and down in the five years CONFUSING. You can see in the graph and increase of kilowatt hours. Even though Coal has the highest increase overall for the graph, Petroleum and Natural Gas had the greatest increase in trillion kilowatt hours between the years 2000 to 2005. LAST STATEMENTS NEED TO BE RE-WORDED TO MAKE THEM MORE CLEAR. -JT

Comment 1: Sydney, your blog is great. You did a good job about referring to the graph. You had a good length of a paragraph and provided information that was needed. Some of your sentences your words are messed up, but i still understand what you were talking about. Your introduction and summary sentences were great! On your overall blog you did great!! -Brittany W.

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 in it burned for 24 hours straight (you forgot and left it turned on), how many kilowatt hours would it use? Make sure to writein 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 the unit in which power is measured in. The way you can calcuate power is Power= voltage x current. The amount of kilowatt hours a 200 watt light bulb would use is 4.8 kilowatt hours. This is because 200 and 24 have have to be multiplied because it is the amount of watts and the amount of hours. This will come out with 4800 watt hours. Now the watt hours have to be turned into kilowatt hours so 4800 has to be divided by 1000. After doing this, the final answer will be 4.8 kilowatt hours.

Comment 1: Sydney your blog was very good. A few things that could be improved on is explain in a little more detail each step. At one point in your blog you did not use 3rd person (used you). There was one spot where there was a grammar problem but it was very small. You had all the most important detailed which was very good. Your blog just would have been great if it would have had a little more detail. GREAT JOB! - Caroline H.

Comment 2: Sydney your content was correct, and you had all of the required information. I liked the way you explained the equation to the reader. You had a few grammatical errors and a couple spots with awkward wording. Besides those, it was in third person, and had good content. Your blog was really well written. Good job Sydney! -Nikki

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: This trimester in Science 7 was very interesting! I most definitely enjoyed doing circuits with the breadboard. It was very fun and cool to do. It was an experience like no other. I think having snakes as a class pet is very fascinating but I do not have any interest in snakes so I just like to look at them. Overall this trimester, I do not feel like I got the grades that I could have. I feel like I could pay more attention in class and study more. I do not understand all of the information, so from now on I need to go ask Ms. Todd for help with it. I did enjoy this trimester but I think I could do better next trimester!

Comment 1: Sydney, I really appreciate your great attitude towards science class. You have helped me learn and understand more about the material we are talking about. You always have a great attitude and always up for learning something new and helping other people. Science class wouldn't be the same without you. - Caroline H.

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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:

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