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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:// In Chicago close to a pizza store as a costumer was giving the money to a cashier the money fell and everything started to rumble. Soon they realized the sky was all of a sudden really dark. The cashiers wife ran to get her granddaughter when she got back to cover the storm was already over. The tornado that was said to hit Salem was a microburst. The microburst is a strong blast of wind starting from a high altitude that moves downward at a fast rate it was traveling from the northwest and moving toward the southeast at a width of 200 yards. The person said that the tornado went in a different direction due to the circular projectile motion which led it away from Salem.

i can connect this story about what we learned in clase because ms.todd taught us about how projectile motion can move in any angle. that is what this tornado did cause something in this tornado projectile motion moveing in circles caused it to move in a different direction away from salem.

//Comment 1:// Your first paragraph was a good story about the article and I think that part is good. The second paragraph however needs a bit more and should not be in first person. In the second paragraph it is not really about how the article relates to you but how it relates to the things we learned in class last week. Overall the first paragraph doesn't need work but the second one will need to be fixed.

Comment 2: This is a nice article. You have a few run on sentences in the first paragraph and a larger run on sentence for the second paragraph. You also have 2 spelling mistakes being clase and moveing. There are also some punctuation mistakes. Other than that, it looks promising. Colin

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 was necessary in this experiment because in this experiment we needed to find the mass, volume, and also the density of the cubes. We needed to determine the mass, volume, and density because it would help us in determining what the cube is made of like for example if it was heavy or light. This determination of the mass, volume, and density did not help much but still helped a little in the determination of what the cube was made of but not much. This made the experiment hard. The density was not very important to find what the cube was made of. It was more about the textures on the cube itself.//

//Comment 1:// I agree with you when you said the scientific method was necessary, however you forgot to include the word method. Also, the scientific method includes more than just finding the mass, volume, and density of an object. It is made up of several different steps. You repeated yourself in your third sentence by saying knowing the density didn't help much twice in a sentence. I agree with you that the experiment was hard as well, but I do not believe it was easier to determine what each cube was made out of based on the texture of the cubes. Overall good job Imraan! -Julia W

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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 used in chemistry to help determine the identity or a possible identity of a metal or a metalloid ion found in an ionic compound. This can help scientist determine what the element and identity is by color, scent, what the element is at room temperature. When doing a flame test there is sometimes a color raising that can be seen by the human eye. Both fireworks and flame test show the colors of the possible identity it could be. In fireworks you may be able to see the element due to the colors of the fireworks. Different elements produce different colors.

Aluminum Chloride || No Color Boric Acid || Pale Green Calcium Chloride || Yellow-Red Colbalt Chloride || No Color Copper Chloride || Bright Green Lithium Chloride || Carmine Red Magnesium Chloride || No Color (Sodium Impurity) Magnesium Chloride || Pale Yellow-Green Sodium Chloride || Bright Yellow Orange Stronium Chloride || Scarlet Red CITATIONS:

TEACHERS WIKI http://science7chemreview1.wikispaces.com/Flame+Tests+(.pdf+9)-+Team+3 PDF DOCUMENT FROM TEACHER

The Flame Test http://www.soinc.org/events/forensics/flametest.pdf

//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:// In this experiment sodium forms an ionic bond to chlorine which causes it to be happy. Therefore this experiment releases energy. There is so much energy and heat being released it causes the sodium block to catch fire. This is why salt water makes you more thirsty when you drink it because it releases energy and also makes you dehydrated.

Entry 2: In this expiriment with sodium mixing with chlohrine both elements are very unhappy. They feel incomplete and uneven. One way to cure this is for one element to give up an electron. In this case it is sodium that is giving up an electron so that both elements can be completed. This proccess is called a ionic bond. During this experiment the cobination of these elements realesed heat making it endothermic. Also when the sodium goes into the chemical chlorine and contacts chlorine it forms an ionic bond an ionic reaction occurs in which each sodium atom loses one atom to each chlorine atom.

//Comment 1:// It doesn't explain the experiment in depth. It gives the briefest overview and you related it to our life today but if i were someone who knew nothing I would not know much still. You need to explain it more show what you really know so that we can all learn. Your grammar was fine. If I were grading this peace I would give it a C-. -Clayton

Comment 2: **You need to explain this experiment more in depth. - Why is the chlorine "happy" - Exothermic or endothermic - The last sentence was not needed - The WHY of the the experiment is not there

The grammar was good though!!! - Anna P.S. C+**

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 this trimester was the flame test because i found it very interesting. During this class toward the end of the trimester we were joined by some snakes. At first I was scared of these but soon i was sitting next to them and playing with them. I will miss them over the break. I excelled in many things this trimester one was the experiments. I could have studied more and also pushed my self a little bit more and kept up with things. I think i did pretty good this trimester. //Comment 1://

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: Electricity plays a big part in my every day life. i could not live with out electricity. There are many places to find electricity i find electricity in plugs, and telephone poles. These generate power to my house every night so i can have the lights on to see. Some of the things i wonder is if there is no electricity would i live and be able to take a shower every night ? And how would my life style be with out electricity.

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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: **1.** As seen in gragh 1 the electricity source that has increased the most is the coal. The Coal has always been a big hit from 1950- 2005. It has always been at the top of the chain. Coal has raised from 0.2 trillion kilwatthours to 2.0 trillion kilwatthours. Coal is also one of the most used electric things in the U.S. **2.** Nuclear electric power is a main source to global warming it is heating up the earth and also breaking it down. We humans are taking away all the worlds recources. **3.** Everything had a significant incrase in the graph was rising hydrolic power, nuclear electric power, Petroleum and natural gas, and coal.

Comment 1: Good effort although there were a few problems. 1. You need to capitolize the different sorces like you did for Petroleum. Also you had a few spelling mistakes hile Hydro-electric and you needed to say : In Graph 1.- Thomas

Comment 2: "Everything had a significant incrase in the graph was rising hydrolic power, nuclear electric power, Petroleum and natural gas, and coal." iMRAAN YOU MUST RE-WRITE THIS AS IT IS NOT LONG ENOUGH AND DOES NOT PROVIDE DATA TO BACK UP YOUR IDEAS.- 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: the year from 2000- 2005 had many ups and downs of the U.S. electricity production sources. Most of the sources shown in graph 1 most of the sources grew other than Hydroelectric power. Form 1975 to 1985 hydroelectric power grew to .5 killowatthours. From the year 2000- 2005 the source for hydroelectric power dropped to .2 to .3 killowatt hours as seen in graph 1. Graph 1 purely shows every source has rose other then Hydroelectric power.

Re-Entry: As seen in graph from 1950 to 2005 all of U.S. sources had a time that they rose but the source that rose the most was coal. Coal always had a significant increase as each year passes unlike any other of U.S. sources as seen in graph 1. Coal has rose from 0.0 killowatt hours in 1950 all the ways to 2.0 killowatt hours in 2005. Coal is also one of the most used sources in U.S. as shown in graph 1.

Comment 1: There is a grammatical error in the first sentence. It would be from the year 2000-2005. You need to summarize all of the sources and give the year. I think your description of hydroelectric power was great though. Andy N-

Re entry: HW 9th: From the year from 2000- 2005 had many ups and downs of the U.S. electricity production sources AWKWARD. Most of the sources shown in graph 1 most of the sources WORDING grew other than Hydroelectric power. Form 1975 to 1985 hydroelectric power grew to .5 killowatthours. From the year 2000- 2005 the source for hydroelectric power dropped to .2 to .3 killowatt hours as seen in graph 1. Graph 1 purely shows every source has rose other then Hydroelectric power. Hydroelectric power was doing better in 1975 to 1985 than it did in 2000 to 2005. OVERALL CONCLUDING SENTENCE ABOUT THE PRODUCERS DURING THIS TIME PERIOD. PLEASE PROOF YOUR WRITING VERY CAREFULLY! ALSO HEED THE COMMENTS BY YOUR PEERS. - JT

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 electrical power also another form of energy or electricity. This electrical unit is very important in everyday life. One way to figure the voltage or power in a circut is V/I/R this shortcut is a easy way of figuring out electrical power. If i were to leave a 200 watt lightbulb on for 24 hours it would use 4.8 kilowatt hours. Here are my steps: 200 x 24= 4800/ 1000= 4.8 kilowatt hours. That is the way to find how electrical power is measured in.

Comment 1: Imraan good job on your blog entry. It was mostly all written in third person except for a few parts. Your grammerr is good I just found one spelling mistake (circuit not circut). Also I am pretty sure when you said "V/I/R this shortcut is a easy way of figuring out electrical power" I think its supposed to be power = V x I. Other than those few mistakes I think you did a very good job on your entry!!! - Nathan

Comment 2: Imraan good job on your entry. Good explanation of the watt and how its used. The way to find the watts has nothing to do with ohms law though. The way to find the amount of watts is to multiply Voltage by Current. Good way to explain te steps, but you talk in third person throughout the last 3 sentences. Good length and I like the second sentence. Great job. Grant C

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: Throughout this trimester in science I enjoyed many things. Firstly I enjoyed handling the snakes and secondly I enjoyed creating the circuits. I also thought it was a fun way to interact with others. Also although science was fun this trimester but also had many ups and downs for me. Some of the things that were hard for me was the unit with atoms but at the end I finally understood it. With the help of Ms.Todd I actually found this trimester easier than I actually thought it would be.

Comment 1: Ok Imraan, it was an interesting experience working with you this trimester!!! I enjoy having you in my science class because you make it more fun! I even sometimes ask you questions when my group doesn't know what to do. I sometimes ask you and you sometimes answer!!! :) I agree that you learned a lot in science. Thanks! Oh yeah, and you ROCK! :) - 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: In the future the robots will have the ability to reason and be self aware. The thing that will make humans different from robots is creativity. The people also have the ability to do what ever is wanted whereas a robot has to follow a set of programming codes. Also humans have abilities to think outside of the box and do something useful while robots are still following programming codes and doing nothing different. One robot that would not want to be created is the robot the army made to kill humans when it sensed heat. I also would not want to see being created is that robot it could be dangerous and risky.

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