Thu, 21 Dec 2006 17:05:36 -0600 Mr. Fletcher http://www.eagan.k12.mn.us/fletcher/acn/ A showcase for student-created projects in Honors Chemistry at Eagan High School. Look for our Podcast in the iTunes Music Store A showcase for student projects A showcase for student-created projects in Honors Chemistry at Eagan High School. Look for our Podcast in the iTunes Music Store en-us © 2006 Eagan High School Honors Chemistry Mr. Fletcher timothy.fletcher@district196.org K-12 no EHS-Chemistry Most people have been exposed to the popularity of energy and sports drinks. But do people really know what they are all about? Some of the truths and misconceptions behind these highly marketed drinks are answered as we explore this topic and talk with some experts. We will look into the chemistry behind sports drinks, how the electrolytes affect the body, and the different concentrations of sports drinks. Energy drinks also have effects on the body such as increased energy, sleep disruption, and dehydration. Watch to learn more about these trendy drinks with a few startling surprises along the way! Most people have been exposed to the popularity of energy and sports drinks. But do people really know what they are all about? Some of the truths and misconceptions behind these highly marketed drinks are answered as we explore this topic and talk with some experts. We will look into the chemistry behind sports drinks, how the electrolytes affect the body, and the different concentrations of sports drinks. Energy drinks also have effects on the body such as increased energy, sleep disruption, and dehydration. Watch to learn more about these trendy drinks with a few startling surprises along the way! http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/energydrinks.mp4 Tue, 9 Jun 2008 10:16:00 -0600 K-12 no 11:16:42 EHS-Chemistry The concept of adhesives haa been part of the world since ancient times. Although simplified, the need for two things to be conjoined in some way has always been present. Adhesives technology can be examined within mainly Pressure sensitive adhesives such as tapes, solvent based adhesives, and structural adhesives. Only recently (within the past 100 years) has technology been developed that takes advantage of the chemical properties of adhesives to fully harness the power that is adhesives. The concept of adhesives haa been part of the world since ancient times. Although simplified, the need for two things to be conjoined in some way has always been present. Adhesives technology can be examined within mainly Pressure sensitive adhesives such as tapes, solvent based adhesives, and structural adhesives. Only recently (within the past 100 years) has technology been developed that takes advantage of the chemical properties of adhesives to fully harness the power that is adhesives. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/adhesives.mp4 Tue, 9 Jun 2008 10:15:00 -0600 K-12 no 09:59:47 EHS-Chemistry While their presence is frequently overlooked, acids are very much an essential part of our lives. When all acids go missing for a day, Tommy experiences the benefits and downfalls of living without acids. From the citric acid in food to the chemistry of stomach acid and adhesives, Tommy acquires a new appreciation when the God of Acids finally restores the acidic balance of life. While their presence is frequently overlooked, acids are very much an essential part of our lives. When all acids go missing for a day, Tommy experiences the benefits and downfalls of living without acids. From the citric acid in food to the chemistry of stomach acid and adhesives, Tommy acquires a new appreciation when the God of Acids finally restores the acidic balance of life. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/acids.mp4 Tue, 9 Jun 2008 10:14:00 -0600 K-12 no 12:42:29 EHS-Chemistry From snow covered driveways to the Boundary Waters, hand warmers are an indispensable tool in chilly environments. First produced in 1924, these portable heaters have played a minor, but helpful role in shaping history. Hand warmers are composed of two basic reactions, crystallization and oxidation. In our episode, Harnessing Heat: Hand Warmers, we explore both processes through expert interviews, hands-on demonstrations, and visual aids. From snow covered driveways to the Boundary Waters, hand warmers are an indispensable tool in chilly environments. First produced in 1924, these portable heaters have played a minor, but helpful role in shaping history. Hand warmers are composed of two basic reactions, crystallization and oxidation. In our episode, Harnessing Heat: Hand Warmers, we explore both processes through expert interviews, hands-on demonstrations, and visual aids. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/handwarmers.mp4 Tue, 9 Jun 2008 10:13:00 -0600 K-12 no 10:21:88 EHS-Chemistry From many of the clothes we wear to toothbrushes to bullet-proof vests, synthetic fibers play an invisible yet persistent role in our daily lives. Synthetic fibers are useful in countless applications because they can be designed to meet the specific needs of a wide array of applications. The science of synthetic fibers comes down to the science of polymers and the ways in which those polymers combine give a synthetic fiber its properties. This movie will explore the how synthetic fibers are formed and will detail the impact of nylon, the world’s first synthetic fiber. From many of the clothes we wear to toothbrushes to bullet-proof vests, synthetic fibers play an invisible yet persistent role in our daily lives. Synthetic fibers are useful in countless applications because they can be designed to meet the specific needs of a wide array of applications. The science of synthetic fibers comes down to the science of polymers and the ways in which those polymers combine give a synthetic fiber its properties. This movie will explore the how synthetic fibers are formed and will detail the impact of nylon, the world’s first synthetic fiber. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/syntheticfibers.mp4 Tue, 9 Jun 2008 10:12:00 -0600 K-12 no 10:05:47 EHS-Chemistry The sun has been around since the beginning of mankind. It is a 27 million degree Fahrenheit ball of fire in the sky. It gives off three different types of ultraviolet rays. Ultraviolet A rays can cause aging and wrinkling if absorbed by the skin. Ultraviolet B rays can cause those irritating, hurtful sunburns. Ultraviolet C rays are absorbed by the ozone layer and if absorbed by humans can cause significant damage. We protect ourselves against these harmful rays through the application of sunscreens. Sunscreens are worn whether it is a scorching sunny day or even a cloudy day. They are what prevent skin cancer, melanoma, burning, premature aging and dark spots. We will take you on a journey exploring the chemistry of these sunscreens and describe why it is so important to be sun smart and sun safe. The sun has been around since the beginning of mankind. It is a 27 million degree Fahrenheit ball of fire in the sky. It gives off three different types of ultraviolet rays. Ultraviolet A rays can cause aging and wrinkling if absorbed by the skin. Ultraviolet B rays can cause those irritating, hurtful sunburns. Ultraviolet C rays are absorbed by the ozone layer and if absorbed by humans can cause significant damage. We protect ourselves against these harmful rays through the application of sunscreens. Sunscreens are worn whether it is a scorching sunny day or even a cloudy day. They are what prevent skin cancer, melanoma, burning, premature aging and dark spots. We will take you on a journey exploring the chemistry of these sunscreens and describe why it is so important to be sun smart and sun safe. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/sunscreens.mp4 Tue, 9 Jun 2008 10:11:00 -0600 K-12 no 10:44:06 EHS-Chemistry Every year millions of people ingest cough medicine to help soothe their symptoms. From stuffy noses to irritating coughs, ingredients such as dextromethorphan and gauifenesin combine to put our bodies at temporary ease. As chemists produce newer and more successful chemicals, the main active ingredients in cough medicine continue to change, each time improving the medicine's overall strength. Every year millions of people ingest cough medicine to help soothe their symptoms. From stuffy noses to irritating coughs, ingredients such as dextromethorphan and gauifenesin combine to put our bodies at temporary ease. As chemists produce newer and more successful chemicals, the main active ingredients in cough medicine continue to change, each time improving the medicine's overall strength. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/coughmedicine.mp4 Tue, 9 Jun 2008 10:10:00 -0600 K-12 no 11:20:24 EHS-Chemistry For over 100 years humans have relied on oil for energy. Recently the economics of oil and its contribution to global climate change have forced us to look at alternative energy sources. This thought-provoking video explores a leading alternative to oil. The video describes the chemistry of hydrogen fuel cells, explores current and potential uses for the technology, compares the efficiency of gasoline and fuel cell engines, discusses methods to produce hydrogen for fuel, and addresses safety concerns of hydrogen. For over 100 years humans have relied on oil for energy. Recently the economics of oil and its contribution to global climate change have forced us to look at alternative energy sources. This thought-provoking video explores a leading alternative to oil. The video describes the chemistry of hydrogen fuel cells, explores current and potential uses for the technology, compares the efficiency of gasoline and fuel cell engines, discusses methods to produce hydrogen for fuel, and addresses safety concerns of hydrogen. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/fuelcells.mp4 Tue, 9 Jun 2008 10:09:00 -0600 K-12 no 10:58:11 EHS-Chemistry Since fire was discovered, it has been a mysterious form of energy. Today, however, the world knows more about it and has found information on the chemistry within it, and of course, how to control and extinguish it. In this video, we explore the chemistry of fire extinguishers, including the history and the use itself. At the end of this video, you will know more about fire extinguishers, with the help of guest experts Darrin Bramwell (Fire Inspector: Eagan Fire Department), Chris Baker (Maple Grove Fire Department: Lieutenant), Jim Jensen (Senior District Manager for Ansel Fire Protection), and Clint Racine (Owner of Eagan Culvers). Since fire was discovered, it has been a mysterious form of energy. Today, however, the world knows more about it and has found information on the chemistry within it, and of course, how to control and extinguish it. In this video, we explore the chemistry of fire extinguishers, including the history and the use itself. At the end of this video, you will know more about fire extinguishers, with the help of guest experts Darrin Bramwell (Fire Inspector: Eagan Fire Department), Chris Baker (Maple Grove Fire Department: Lieutenant), Jim Jensen (Senior District Manager for Ansel Fire Protection), and Clint Racine (Owner of Eagan Culvers). http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/fireextinguishers.mp4 Tue, 9 Jun 2008 10:08:00 -0600 K-12 no 11:26:01 EHS-Chemistry There are so many different types of shampoo, each claiming to do something different. We use these products everyday, but most of us don’t understand why they work. In this video, we will examine the active ingredient in shampoo and the chemical power behind it as well as shampoo’s other ingredients. Only then can we understand shampoo and determine which one is truly the best. There are so many different types of shampoo, each claiming to do something different. We use these products everyday, but most of us don’t understand why they work. In this video, we will examine the active ingredient in shampoo and the chemical power behind it as well as shampoo’s other ingredients. Only then can we understand shampoo and determine which one is truly the best. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/shampoo.mp4 Tue, 9 Jun 2008 10:07:00 -0600 K-12 no 11:03:03 EHS-Chemistry The key to ending world hunger as well as giving you the greenest lawn on the block may lie in the world of fertilizer... but at what cost? How much do we really know about what we put on our lawns and into the environment? We'll explore where fertilizer came from and where it's headed. Learn about the chemistry of fertilizer, its interactions with the soil and plants, and discover the underlying benefits and consequences of this giver of nutrients to deficient crops and plants all across the world. The key to ending world hunger as well as giving you the greenest lawn on the block may lie in the world of fertilizer... but at what cost? How much do we really know about what we put on our lawns and into the environment? We'll explore where fertilizer came from and where it's headed. Learn about the chemistry of fertilizer, its interactions with the soil and plants, and discover the underlying benefits and consequences of this giver of nutrients to deficient crops and plants all across the world. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/fertilizer.mp4 Tue, 9 Jun 2008 10:06:00 -0600 K-12 no 10:41:01 EHS-Chemistry Scientists have suggested that the desire for sweetness is an inherent trait in humans. But the problem with sweet tasting foods is that they are often high in calories. In order to provide sweetening with minimal calories, sugar is being replaced by artificial sweeteners, man-made molecules shrouded in deep controversy. Join us as we explore the wonders of taste and discover what has made artificial sweeteners so popular and if they are, infact, safe to eat. Scientists have suggested that the desire for sweetness is an inherent trait in humans. But the problem with sweet tasting foods is that they are often high in calories. In order to provide sweetening with minimal calories, sugar is being replaced by artificial sweeteners, man-made molecules shrouded in deep controversy. Join us as we explore the wonders of taste and discover what has made artificial sweeteners so popular and if they are, infact, safe to eat. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/artificialsweeteners.mp4 Tue, 9 Jun 2008 10:05:00 -0600 K-12 no 11:54:04 EHS-Chemistry In America, batteries have become part of our everyday lives. They have become a necessity for nearly everyone in our nation. From the cars we drive, to the cell phones we use to communicate, we use batteries every day in our high-tech devices. We all know a few uses of batteries, but have you ever wondered how they actually work? This video explains the chemistry of batteries by talking to experts in the field of batteries, conducting a home experiment, and examining the past, present, and future of batteries. In America, batteries have become part of our everyday lives. They have become a necessity for nearly everyone in our nation. From the cars we drive, to the cell phones we use to communicate, we use batteries every day in our high-tech devices. We all know a few uses of batteries, but have you ever wondered how they actually work? This video explains the chemistry of batteries by talking to experts in the field of batteries, conducting a home experiment, and examining the past, present, and future of batteries. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/batteries.mp4 Tue, 9 Jun 2008 10:04:00 -0600 K-12 no 10:39:47 EHS-Chemistry Soft drinks are the most popular drinks in the world. Yet, there is still a mystery surrounding what exactly goes into making them. This episode of "The Chemistry of Soft Drinks" explores the different components such as the carbonation process, flavoring, the difference between diet and regular, and the effects of the drinks on our body. Soft drinks are the most popular drinks in the world. Yet, there is still a mystery surrounding what exactly goes into making them. This episode of "The Chemistry of Soft Drinks" explores the different components such as the carbonation process, flavoring, the difference between diet and regular, and the effects of the drinks on our body. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/softdrinks.mp4 Tue, 9 Jun 2008 10:03:00 -0600 K-12 no 10:18:40 EHS-Chemistry An explanation of paint's journey from production through usage to recycling. A focus on chemical aspects allows for discussion of the components of paint and the difference between latex and oil paints. Although there is a wide diversity of paints, the common properties they share make them important substances with a large industry to create them. Industry and recycling experts share their insights on the nature of paint. An explanation of paint's journey from production through usage to recycling. A focus on chemical aspects allows for discussion of the components of paint and the difference between latex and oil paints. Although there is a wide diversity of paints, the common properties they share make them important substances with a large industry to create them. Industry and recycling experts share their insights on the nature of paint. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/paint.mp4 Tue, 9 Jun 2008 10:02:00 -0600 K-12 no 11:15:71 EHS-Chemistry Little Billy and Timmy loved playing with their old electronics. It was all fun and games until they came down with lead poisoning. Take an emotional rollercoaster along with the little boys’ mother to see how this tragedy could have happened. What caused the poisoning? How can we prevent more poisonings from happening in the future? Ride along as we examine the chemical process of the ultimate solution: recycling. Little Billy and Timmy loved playing with their old electronics. It was all fun and games until they came down with lead poisoning. Take an emotional rollercoaster along with the little boys’ mother to see how this tragedy could have happened. What caused the poisoning? How can we prevent more poisonings from happening in the future? Ride along as we examine the chemical process of the ultimate solution: recycling. http://www.eagan.k12.mn.us/fletcher/acn/mov/2008/recycling.mp4 Tue, 9 Jun 2008 10:01:00 -0600 K-12 no 10:44:60 EHS-Chemistry Since the dawn of man, we have always had an impact on our environment. One of the most recent and startling developments has been global climate change. Man has now unwittingly caused a complex web of atmospheric and ecological interactions to go haywire. By releasing excess amounts of CO2 through combustion, the human race has caused three distinct effects: global warming, global cooling, and global dimming. In this video, we examine the chemistry and science behind each, and talk with experts about the effects of and solutions for climate change. Since the dawn of man, we have always had an impact on our environment. One of the most recent and startling developments has been global climate change. Man has now unwittingly caused a complex web of atmospheric and ecological interactions to go haywire. By releasing excess amounts of CO2 through combustion, the human race has caused three distinct effects: global warming, global cooling, and global dimming. In this video, we examine the chemistry and science behind each, and talk with experts about the effects of and solutions for climate change. http://www.eagan.k12.mn.us/fletcher/acn/mov/group11.mp4 Tue, 5 Jun 2007 10:23:00 -0600 K-12 no 17:12:32 EHS-Chemistry Imagine you’re in a field of wildflowers. Now, these flowers may look pretty, but if you didn’t have a sense of smell, you wouldn’t be able to appreciate their full beauty. In this episode, we’ll discover exactly how your nose works, the chemistry behind odors and the discoveries leading up to modern knowledge of the sense of smell. We will also explore the practical applications of the sense of smell in scientific and medical research. Although the chemistry of smell is not fully understood, we can see how important smell will be for us in the future. Imagine you’re in a field of wildflowers. Now, these flowers may look pretty, but if you didn’t have a sense of smell, you wouldn’t be able to appreciate their full beauty. In this episode, we’ll discover exactly how your nose works, the chemistry behind odors and the discoveries leading up to modern knowledge of the sense of smell. We will also explore the practical applications of the sense of smell in scientific and medical research. Although the chemistry of smell is not fully understood, we can see how important smell will be for us in the future. http://www.eagan.k12.mn.us/fletcher/acn/mov/group9.mp4 Tue, 5 Jun 2007 10:22:00 -0600 K-12 no 18:22:47 EHS-Chemistry Acids and bases are a fundamental part of human life and without them we would not function. From the food we eat, to the way our bodies maintain homeostasis, and even the batteries that power our electronics, acids and bases have a profound impact on our everyday life. Acids and bases are a fundamental part of human life and without them we would not function. From the food we eat, to the way our bodies maintain homeostasis, and even the batteries that power our electronics, acids and bases have a profound impact on our everyday life. http://www.eagan.k12.mn.us/fletcher/acn/mov/group8.mp4 Tue, 5 Jun 2007 10:21:00 -0600 K-12 no 19:23:99 EHS-Chemistry Our reliance on fossil fuels has terrible consequences, politically, environmentally, and otherwise. Most experts predict our energy crisis will be resolved through a combination of improving current techniques and increasing production of alternative energy. Contemporary Chemistry explores the basics of current fossil based fuels such as gasoline and compares different aspects of those fuels to alternative energy sources such as ethanol, hydrogen, and nuclear power. By comparing cost, efficiency, availability, energy ratios, environmental impacts, and impact on the consumer, Contemporary Chemistry hopes to provide a quick overview on the state of energy today and give the viewer basic knowledge on the direction energy sources may be headed in the future. Our reliance on fossil fuels has terrible consequences, politically, environmentally, and otherwise. Most experts predict our energy crisis will be resolved through a combination of improving current techniques and increasing production of alternative energy. Contemporary Chemistry explores the basics of current fossil based fuels such as gasoline and compares different aspects of those fuels to alternative energy sources such as ethanol, hydrogen, and nuclear power. By comparing cost, efficiency, availability, energy ratios, environmental impacts, and impact on the consumer, Contemporary Chemistry hopes to provide a quick overview on the state of energy today and give the viewer basic knowledge on the direction energy sources may be headed in the future. http://www.eagan.k12.mn.us/fletcher/acn/mov/group2.mp4 Tue, 5 Jun 2007 10:20:00 -0600 K-12 no 15:09:36 EHS-Chemistry Everyone is affected by Alzheimer’s disease. Scientists, however, do not have much information on Alzheimer’s disease, which prevents them from being able to cure it. In the meantime, scientists are able to treat the symptoms related to the disease. Designing molecules for Alzheimer’s will be a lengthy process because of the large time span and precautions needed when developing a new drug. For the design of these pharmaceuticals, scientists have to be able to design the molecule following a variety of steps including computer modeling. They also have to be able to classify the molecule, figure out the side affects, and test for its safety. Once the design process has passed each step, the drug can finally be presented on the market, but will have to continue to be monitored for its long term effects. The world of drug design is straining and time consuming. With time, scientists will be able to treat incurable diseases, like Alzheimer’s, with advancing technology and the increasing research capabilities. Everyone is affected by Alzheimer’s disease. Scientists, however, do not have much information on Alzheimer’s disease, which prevents them from being able to cure it. In the meantime, scientists are able to treat the symptoms related to the disease. Designing molecules for Alzheimer’s will be a lengthy process because of the large time span and precautions needed when developing a new drug. For the design of these pharmaceuticals, scientists have to be able to design the molecule following a variety of steps including computer modeling. They also have to be able to classify the molecule, figure out the side affects, and test for its safety. Once the design process has passed each step, the drug can finally be presented on the market, but will have to continue to be monitored for its long term effects. The world of drug design is straining and time consuming. With time, scientists will be able to treat incurable diseases, like Alzheimer’s, with advancing technology and the increasing research capabilities. http://www.eagan.k12.mn.us/fletcher/acn/mov/group4.mp4 Tue, 5 Jun 2007 10:19:00 -0600 K-12 no 15:11:78 EHS-Chemistry Garbage is a part of our daily life. It’s filling the earth and filling up dumps. But what amount of this can actually be turned around and become a completely new thing? Recycling can reduce the amount of waste our planet puts out and is catching on to become a world-wide practice. Watch as we take you inside the recycling process to explore the characteristics of a plastic- from its chemical make-up to what makes it recyclable. Garbage is a part of our daily life. It’s filling the earth and filling up dumps. But what amount of this can actually be turned around and become a completely new thing? Recycling can reduce the amount of waste our planet puts out and is catching on to become a world-wide practice. Watch as we take you inside the recycling process to explore the characteristics of a plastic- from its chemical make-up to what makes it recyclable. http://www.eagan.k12.mn.us/fletcher/acn/mov/group3.mp4 Tue, 5 Jun 2007 10:18:00 -0600 K-12 no 14:55:56 EHS-Chemistry Although the periodic table was published nearly a century and a half ago, it still remains one of the most valuable tools for chemists. “Accompany us as we dive into the vast information provided by this unique tool.” We will explore the controversial history of the periodic table, some of its basic trends across the groups and periods and the creation and use of synthetic elements. We will also cover how the periodic table is applied in industries; specifically on glassware. Finally, we will wrap up our coverage with a look at what might be happening in the near future. Some examples include what new elements might soon be created and possible new uses for previously known elements. Although the periodic table was published nearly a century and a half ago, it still remains one of the most valuable tools for chemists. “Accompany us as we dive into the vast information provided by this unique tool.” We will explore the controversial history of the periodic table, some of its basic trends across the groups and periods and the creation and use of synthetic elements. We will also cover how the periodic table is applied in industries; specifically on glassware. Finally, we will wrap up our coverage with a look at what might be happening in the near future. Some examples include what new elements might soon be created and possible new uses for previously known elements. http://www.eagan.k12.mn.us/fletcher/acn/mov/group5.mp4 Tue, 5 Jun 2007 10:17:00 -0600 K-12 no 14:42:29 EHS-Chemistry Electricity - we all know what it does and how we use it. Just pop a battery into your favorite hand-held gadget and off you go. But have you ever really thought about how batteries can give off electricity? Or even how a blood glucose sensor works? The answer to all these questions is the same - electrochemistry. Whether you knew it or not, there is a remarkable connection between chemistry and electricity. Over the years we as humans have learned how to tap into that potential and use it for our benefit. In just a quarter hour, we'll show you the theory, science, and application of this useful technology. You'll find that the possibilities of electrochemistry are nearly endless! Electricity - we all know what it does and how we use it. Just pop a battery into your favorite hand-held gadget and off you go. But have you ever really thought about how batteries can give off electricity? Or even how a blood glucose sensor works? The answer to all these questions is the same - electrochemistry. Whether you knew it or not, there is a remarkable connection between chemistry and electricity. Over the years we as humans have learned how to tap into that potential and use it for our benefit. In just a quarter hour, we'll show you the theory, science, and application of this useful technology. You'll find that the possibilities of electrochemistry are nearly endless! http://www.eagan.k12.mn.us/fletcher/acn/mov/group6.mp4 Tue, 5 Jun 2007 10:16:00 -0600 K-12 no 15:16:33 EHS-Chemistry The purpose of our video was to educate others on how to design an experiment. The video covers the various steps of experimental design, including the first and most important step, researching. It also discusses materials, data collecting, experimental problems, concluding, and analyzing. These steps are explained through the use of Jan Ingenhousz’s photosynthesis experiment. This historic chemist tested the affect of light on the air by putting a plant and candle into an enclosed space in sunlight and darkness. By using his experimental methods as an example, the video shows how experimentation can be used in all areas of science and how photosynthesis itself has impacted chemistry. The purpose of our video was to educate others on how to design an experiment. The video covers the various steps of experimental design, including the first and most important step, researching. It also discusses materials, data collecting, experimental problems, concluding, and analyzing. These steps are explained through the use of Jan Ingenhousz’s photosynthesis experiment. This historic chemist tested the affect of light on the air by putting a plant and candle into an enclosed space in sunlight and darkness. By using his experimental methods as an example, the video shows how experimentation can be used in all areas of science and how photosynthesis itself has impacted chemistry. http://www.eagan.k12.mn.us/fletcher/acn/mov/group7.mp4 Tue, 5 Jun 2007 10:14:00 -0600 K-12 no 15:21:33 EHS-Chemistry In a world as complex as the one we live in today, it is sometimes hard to find a constant that is able to connect many of the objects that we interact with. Chemical kinetics is an example of one of those constants. Chemical kinetics is so broad that it includes things from explosions to the food that helps grow the flowers we buy for loved ones. Just how vast is chemical kinetics? What does it still have to do with today? We ask the experts these questions as we explore the world of chemical kinetics. In a world as complex as the one we live in today, it is sometimes hard to find a constant that is able to connect many of the objects that we interact with. Chemical kinetics is an example of one of those constants. Chemical kinetics is so broad that it includes things from explosions to the food that helps grow the flowers we buy for loved ones. Just how vast is chemical kinetics? What does it still have to do with today? We ask the experts these questions as we explore the world of chemical kinetics. http://www.eagan.k12.mn.us/fletcher/acn/mov/group10.mp4 Tue, 5 Jun 2007 10:13:00 -0600 K-12 no 15:20:33 EHS-Chemistry Whether it be 55,000 feet in the sky or swimming underwater, gases and their properties affect our daily lives more than we may think or even comprehend. This movie is an examination of the different gas laws that include: Boyle’s, Charles’, Gay-Lussac’s, Combined, Dalton’s, and Avagadro’s. By relating gas laws to real life examples like scuba diving, hot air ballooning, and aviation, we travel to Lake Nakomis, Wisconsin, Eastview High School, and even the cockpit of a 747 flight simulator at the Northwest Airlines Flight Operations building to explore their presence in the world around us. The main focus of our movie is pressure and how it connects to each of these activities and the occupations that go along with them. Whether it be 55,000 feet in the sky or swimming underwater, gases and their properties affect our daily lives more than we may think or even comprehend. This movie is an examination of the different gas laws that include: Boyle’s, Charles’, Gay-Lussac’s, Combined, Dalton’s, and Avagadro’s. By relating gas laws to real life examples like scuba diving, hot air ballooning, and aviation, we travel to Lake Nakomis, Wisconsin, Eastview High School, and even the cockpit of a 747 flight simulator at the Northwest Airlines Flight Operations building to explore their presence in the world around us. The main focus of our movie is pressure and how it connects to each of these activities and the occupations that go along with them. http://www.eagan.k12.mn.us/fletcher/acn/mov/group12.mp4 Tue, 5 Jun 2007 10:12:00 -0600 K-12 no 14:02:17 EHS-Chemistry Human fingers have been known to do many things. Build pyramids, complete heart surgery, play classics, and solve crimes. Fingerprints are unique to every individual, and were the starting block for one of the fastest-growing fields in career science...forensics! Join our narrator as we explore the fascinating field of forensic science. Guests include Mr. Leigh Anderson (Rosemount High School, Forensics Teacher), Ms. Mumtaz Pasha (Forensic Toxicologist, Bureau of Criminal Apprehension), and Mr. Todd Carlson (Eagan High School, Criminology Teacher). EHS Accelerated Chemistry, 2005-2006. Human fingers have been known to do many things. Build pyramids, complete heart surgery, play classics, and solve crimes. Fingerprints are unique to every individual, and were the starting block for one of the fastest-growing fields in career science...forensics! Join our narrator as we explore the fascinating field of forensic science. Guests include Mr. Leigh Anderson (Rosemount High School, Forensics Teacher), Ms. Mumtaz Pasha (Forensic Toxicologist, Bureau of Criminal Apprehension), and Mr. Todd Carlson (Eagan High School, Criminology Teacher). EHS Accelerated Chemistry, 2005-2006. http://www.eagan.k12.mn.us/fletcher/acn/mov/ForensicScience.m4v Wed, 10 Jan 2007 19:12:00 -0600 K-12 no 16:29:32 EHS-Chemistry How do plants relate to chemistry? Join Dr. Professor Chummybum as he explores this "fantastic" topic! Guests include Mr. David Strick (Eagan High School, Biology Teacher), Dr. Robert Lebowitz (PhD Chemistry, Plant Expert), and Nelson Jonnes (Chemist and Inventor). EHS Accelerated Chemistry, 2005-2006. How do plants relate to chemistry? Join Dr. Professor Chummybum as he explores this "fantastic" topic! Guests include Mr. David Strick (Eagan High School, Biology Teacher), Dr. Robert Lebowitz (PhD Chemistry, Plant Expert), and Mr. Nelson Jonnes (Chemist and Inventor). EHS Accelerated Chemistry, 2005-2006. http://www.eagan.k12.mn.us/fletcher/acn/mov/PlantChemistry.m4v Sat, 6 Jan 2007 19:01:07 -0600 K-12 no 20:39:57 Hour 4 Commercial for Mercury Commercial for Mercury http://www.eagan.k12.mn.us/fletcher/acn/mp3/Hg_4_9.mp3 Thu, 21 Dec 2006 17:01:07 -0600 K-12 no 00:00:57 Hour 4 Commercial for Chlorine Commercial for Chlorine http://www.eagan.k12.mn.us/fletcher/acn/mp3/Cl_4_8.mp3 Thu, 21 Dec 2006 17:00:35 -0600 K-12 no 00:00:42 Hour 4 Commercial for Neon Commercial for Neon http://www.eagan.k12.mn.us/fletcher/acn/mp3/Ne_4_7.mp3 Thu, 21 Dec 2006 17:00:04 -0600 K-12 no 00:01:03 Hour 4 Commercial for Arsenic Commercial for Arsenic http://www.eagan.k12.mn.us/fletcher/acn/mp3/As_4_6.mp3 Thu, 21 Dec 2006 16:59:34 -0600 K-12 no 00:00:51 Hour 4 Commercial for Uranium Commercial for Uranium http://www.eagan.k12.mn.us/fletcher/acn/mp3/U_4_5.mp3 Thu, 21 Dec 2006 16:58:57 -0600 K-12 no 00:01:00 Hour 4 Commercial for Tungsten Commercial for Tungsten http://www.eagan.k12.mn.us/fletcher/acn/mp3/W_4_4.mp3 Thu, 21 Dec 2006 16:58:20 -0600 K-12 no 00:01:00 Hour 4 Commercial for Lithium Commercial for Lithium http://www.eagan.k12.mn.us/fletcher/acn/mp3/Li_4_3.mp3 Thu, 21 Dec 2006 16:57:41 -0600 K-12 no 00:00:51 Hour 4 Commercial for Strontium Commercial for Strontium http://www.eagan.k12.mn.us/fletcher/acn/mp3/Sr_4_2.mp3 Thu, 21 Dec 2006 16:57:03 -0600 K-12 no 00:00:56 Hour 4 Commercial for Silicon Commercial for Silicon http://www.eagan.k12.mn.us/fletcher/acn/mp3/Si_4_1.mp3 Thu, 21 Dec 2006 16:56:30 -0600 K-12 no 00:01:00 Hour 3 Commercial for Oxygen Commercial for Oxygen http://www.eagan.k12.mn.us/fletcher/acn/mp3/O_3_9.mp3 Thu, 21 Dec 2006 16:55:12 -0600 K-12 no 00:01:39 Hour 3 Commercial for Tungsten Commercial for Tungsten http://www.eagan.k12.mn.us/fletcher/acn/mp3/W_3_8.mp3 Thu, 21 Dec 2006 16:54:36 -0600 K-12 no 00:00:59 Hour 3 Commercial for Krypton Commercial for Krypton http://www.eagan.k12.mn.us/fletcher/acn/mp3/Kr_3_7.mp3 Thu, 21 Dec 2006 16:53:14 -0600 K-12 no 00:01:00 Hour 3 Commercial for Chlorine Commercial for Chlorine http://www.eagan.k12.mn.us/fletcher/acn/mp3/Cl_3_6.mp3 Thu, 21 Dec 2006 16:52:35 -0600 K-12 no 00:01:02 Hour 3 Commercial for Carbon Commercial for Carbon http://www.eagan.k12.mn.us/fletcher/acn/mp3/C_3_5.mp3 Thu, 21 Dec 2006 16:50:09 -0600 K-12 no 00:01:18 Hour 3 Commercial for Platinum Commercial for Platinum http://www.eagan.k12.mn.us/fletcher/acn/mp3/Pt_3_4.mp3 Thu, 21 Dec 2006 16:49:19 -0600 K-12 no 00:01:04 Hour 3 Commercial for Lithium Commercial for Lithium http://www.eagan.k12.mn.us/fletcher/acn/mp3/Li_3_3.mp3 Thu, 21 Dec 2006 16:48:24 -0600 K-12 no 00:01:29 Hour 3 Commercial for Calcium Commercial for Calcium http://www.eagan.k12.mn.us/fletcher/acn/mp3/Ca_3_2.mp3 Thu, 21 Dec 2006 16:46:40 -0600 K-12 no 00:01:04 Hour 3 Commercial for Uranium Commercial for Uranium http://www.eagan.k12.mn.us/fletcher/acn/mp3/U_3_1.mp3 Thu, 21 Dec 2006 16:29:02 -0600 K-12 no 00:01:02 Hour 4 Commercial for the transition metals. Commercial for the transition metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/TransitionMetals_4.mp3 Mon, 09 Jan 2006 17:55:00 -0600 K-12 no 00:01:16 transition, metals, chemistry, elements, periodic Hour 4 Commercial for the nonmetals. Commercial for the nonmetals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Nonmetals_4.mp3 Mon, 09 Jan 2006 17:54:00 -0600 K-12 no 00:02:01 nonmetals, chemistry, elements, periodic Hour 4 Commercial for the metalloids. Commercial for the metalloids. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Metalloids_4.mp3 Mon, 09 Jan 2006 17:53:00 -0600 K-12 no 00:01:34 metalloids, semiconductors, chemistry, elements, periodic Hour 4 Commercial for the metals (Real Men of Genius spoof). Commercial for the metals (Real Men of Genius spoof). http://www.eagan.k12.mn.us/fletcher/acn/mp3/Metals_4.mp3 Mon, 09 Jan 2006 17:53:00 -0600 K-12 no 00:01:03 metals, chemistry, elements, periodic Hour 4 Commercial for hydrogen. Commercial for hydrogen. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Hydrogen_4.mp3 Mon, 09 Jan 2006 17:52:00 -0600 K-12 no 00:03:00 hydrogen, nonmetals, chemistry, elements, periodic Hour 4 Commercial for the inner transition metals. Commercial for the inner transition metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/InnerTransMetals_4.mp3 Mon, 09 Jan 2006 17:52:00 -0600 K-12 no 00:01:51 transition, metals, chemistry, elements, periodic Hour 4 eHarmony spoof for the halogens. eHarmony spoof for the halogens. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Halogens_4.mp3 Mon, 09 Jan 2006 17:51:00 -0600 K-12 no 00:01:27 halogens, nonmetals, chemistry, elements, periodic Hour 4 Commercial for the chalcogens. Commercial for the chalcogens. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Chalcogens_4.mp3 Mon, 09 Jan 2006 17:50:00 -0600 K-12 no 00:02:16 chalcogens, chemistry, elements, periodic Hour 3 Commercial for the alkaline earth metals. Commercial for the alkaline earth metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/AlkalineEarth_3.mp3 Mon, 09 Jan 2006 17:49:00 -0600 K-12 no 00:01:23 alkaline, metals, chemistry, elements, periodic Hour 4 Commercial for the alkali metals. Commercial for the alkali metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Alkali_4.mp3 Mon, 09 Jan 2006 17:49:00 -0600 K-12 no 00:01:11 alkali, metals, chemistry, elements, periodic Hour 4 Commercial for the alkaline earth metals. Commercial for the alkaline earth metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/AlkalineEarth_4.mp3 Mon, 09 Jan 2006 17:49:00 -0600 K-12 no 00:01:30 alkaline, metals, chemistry, elements, periodic Hour 4 Commercial for the noble gases. Commercial for the noble gases. http://www.eagan.k12.mn.us/fletcher/acn/mp3/NobleGases_4.mp3 Mon, 09 Jan 2006 17:49:00 -0600 K-12 no 00:01:43 noble, gases, chemistry, elements, periodic Hour 3 Commercial for the nonmetals. Commercial for the nonmetals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Nonmetals_3.mp3 Mon, 09 Jan 2006 17:47:00 -0600 K-12 no 00:02:34 nonmetals, chemistry, elements, periodic Hour 3 Commercial for the transition metals. Commercial for the transition metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/TransitionMetals_3.mp3 Mon, 09 Jan 2006 17:47:00 -0600 K-12 no 00:00:39 transition, metals, chemistry, elements, periodic Hour 3 Commercial for the noble gases. Commercial for the noble gases. http://www.eagan.k12.mn.us/fletcher/acn/mp3/NobleGases_3.mp3 Mon, 09 Jan 2006 17:46:00 -0600 K-12 no 00:01:40 noble, gases, chemistry, elements, periodic Hour 3 Commercial for the metalloids. Commercial for the metalloids. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Metalloids_3.mp3 Mon, 09 Jan 2006 17:45:00 -0600 K-12 no 00:01:47 metalloids, semiconductors, chemistry, elements, periodic Hour 3 Commercial for the metals. Commercial for the metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Metals_3.mp3 Mon, 09 Jan 2006 17:45:00 -0600 K-12 no 00:01:21 metals, chemistry, elements, periodic Hour 3 Commercial for hydrogen. Commercial for hydrogen. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Hydrogen_3.mp3 Mon, 09 Jan 2006 17:44:00 -0600 K-12 no 00:02:08 hydrogen, nonmetals, chemistry, elements, periodic Hour 3 Commercial for the inner transition metals. Commercial for the inner transition metals. http://www.eagan.k12.mn.us/fletcher/acn/mp3/InnerTransMetals_3.mp3 Mon, 09 Jan 2006 17:44:00 -0600 K-12 no 00:01:15 transition, metals, chemistry, elements, periodic Hour 3 Commercial for the halogens. Commercial for the halogens. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Halogens_3.mp3 Mon, 09 Jan 2006 17:43:00 -0600 K-12 no 00:00:47 halogens, nonmetals, chemistry, elements, periodic Hour 3 An original piece about the alkali metal family set to the tune of Afternoon Delight. An original piece about the alkali metal family set to the tune of Afternoon Delight. http://www.eagan.k12.mn.us/fletcher/acn/mp3/Alkali_3.mp3 Mon, 09 Jan 2006 17:42:00 -0600 K-12 no 00:01:39 alkali, metals, chemistry, elements, periodic