Sunday, December 29, 2019
Science Projects for Every Subject
How many times have you seen a science demonstration or watched a cool video and wished you could do something similar? While having a science lab certainly expands the type of projects you can do, there are many entertaining and fascinating projects you can do using everyday materials found in your own home or classroom. The projects listed here are grouped according to subject, so no matter what youre interested in, youll find an exciting activity. Youll find projects for every age and skill level, generally intended for the home or a basic school lab. To understand the basics of chemical reactions, start with the classic baking soda volcano or get a little more advanced and make your own hydrogen gas. Next,à learn the basics of crystallography with our collection of crystal-related experiments.à For younger students, our bubble-related experiments are simple, safe, and lots of fun. But if youre looking to turn up the heat, explore our collection of fire and smoke experiments.à Because everyone knows science is more fun when you can eat it, try some of our chemistry experiments involving food. And finally, ourà weather-related experimentsà are perfect for amateur meteorologists anyà time of the year.à Turn a Science Project Into a Science Experiment While science projects may be done simply because they are fun and raise interest in a subject, you can use them as the basis for experiments. An experiment is a part of the scientific method. The scientific method, in turn, is a step-by-step process used to ask and answer questions about the natural world. To apply the scientific method, follow these steps: Make observations: Whether youre aware of it or not, you always know something about a subject before you perform a project or experiment with it. Sometimes observations take the form of background research. Sometimes they are qualities of a subject you notice. Its a good idea to keep a notebook to record your experiences before a project. Make notes of anything of interest to you.Propose a hypothesis: Think of a hypothesis in the form of cause and effect. If you take an action, what do you think the effect will be? For the projects in this list, think what might happen if you change the amounts of ingredients or substitute one material for another.Design and perform an experiment: An experiment is a way to test a hypothesis. Example: Do all brands of paper towels pick up the same amount of water? An experiment might be to measure the amount of liquid picked up by different paper towels and see if its the same.Accept or reject the hypothesis: If your hypothesis was that all brands of paper towels are equal, yet your data indicates they picked up different volumes of water, you would reject the hypothesis. Rejecting a hypothesis doesnt mean the science was bad. On the contrary, you can tell more from a rejected hypothesis than an accepted one.Propose a new hypothesis: If you rejected your hypothesis, you can form a new one to test. In other cases, your initial experiment might raise other questions to explore. A Note About Lab Safety Whether you conduct projects in your kitchen or a formal laboratory, keep safety first and foremost in your mind. Always read the instructions and warning labels on chemicals, even common kitchen and cleaning products. In particular, note whether there are restrictions about which chemicals can be stored together and what hazards are associated with the ingredients. Note whether or not a product is toxic or poses a hazard if it is inhaled, ingested, or touches skin.Prepare for an accident before one happens. Know the location of the fire extinguisher and how to use it. Know what to do if you break glassware, accidentally injure yourself, or spill a chemical.Dress appropriately for science. Some projects in this list require no special protective gear. Others are best performed with safety googles, gloves, a lab coat (or old shirt), long pants, and covered shoes.Dont eat or drink around your projects. Many science projects involve materials you dont want to ingest. Also, if youre snacking, youre distracted. Keep your focus on your project.Dont play mad scientist. Young children may think chemistr y is about mixing together chemicals and seeing what happens or that biology involves testing the reactions of animals to different situations. This is not science. Good science is like good cooking. Start by following a protocol to the letter. Once you understand the basic principles, you can expand your experiment in new directions following the principles of the scientific method. A Final Word About Science Projects From each project, youll find links to explore many other science activities. Use these projects as a starting point to ignite interest in science and learn more about a subject. But, dont feel like you need written instructions to continue your exploration of science! You can apply the scientific method to ask and answer any question or explore solutions to any problem. When faced with a question, ask yourself if you can predict an answer and test whether or not it is valid. When you have a problem, use science to logically explore the cause and effect of any action you might take. Before you know it, youll be a scientist.
Saturday, December 21, 2019
U.s. Foreign Policy Policies - 1370 Words
The U.S. foreign policy has always been linked to the domestic policy since the U.S. never feared of expanding its national interests over the national boarders. Isolation for the U.S. usually implied slow economic growth and the large number of destructive conflicts within, while impudent foreign policy always guaranteed an abrupt economic growth for the U.S. economy. After the U.S. intervened in the WWI and the WWII, the U.S. economy witnessed a tremendous economic growth, nearly elimination of the unemployment, rapid urbanization and overall growth of the standards of living across the country. Decisive foreign policy has always been providing the U.S. economy with the sustainable and rapid economic growth, unlike the policy aimed at isolation of the U.S. According to Kaufman and Joyce (2010), preoccupation with the domestic issues never resulted in the long-term economic growth for the U.S. Isolationist policies impeded the U.S. territorial expansion in the nineteenth and twentie th centuries (Kaufman Joyce 71). While some presidents indeed preferred isolationism like FDR during his first tenures as the U.S. President, he then abolished isolationist policies after the 1941 Pearl Harbor disaster. The U.S. witnessed that isolationist policies for the U.S. turned out to be extremely unproductive and even dangerous. Militarist Japan brutally attacked the U.S. fleet on Hawaii during the WWII, totally ignoring the U.S. neutral isolationist status in 1941. FDR had to confessShow MoreRelatedU.s. Foreign Policy Decisions716 Words à |à 3 Pagesreasons.â⬠(Kaufman pg. 3). Here Kaufman begins to unravel the differences between these two types of foreign policy. The extraordinary are the issues surrounding war, terrorist attacks, cyber warfare. The mundane, is as simple as the labels on your clothing, but as complex as who is allowed entry into the U.S.. These topics do not elicit as much of a reaction, because as Kaufman argues ââ¬Å"the foreign policy decisio ns that most people know about and follow closely are those that are extraordinary becauseRead MoreU.s. Bush s Administration On Foreign Policy Over The Last Forty Years1717 Words à |à 7 Pagesdefinition of unilateralism and its application to US foreign policy over the last forty years. In defining the term, this essay will leave aside the debate between the competing concepts of unilateralism and multilateralism, which has occupied extensive literature after the 9/11 attacks and the following military actions. The essay will Definition of unilateralism (800 words) Meaning of unilateralism Unilateralism in american foreign policy Was Bush the first one? How long it has beenRead MoreU.s. Foreign Policy Policies Essay1312 Words à |à 6 PagesAmerican foreign policy relates to what is done in foreign countries by the United States of America. The foreign policies include controlling of the governments of foreign countries or setting some rules in those countries. The foreign policy of America has always been changing all through the US existence. The changes have stemmed from the dynamics of exogenous and substantial influences of watershed up to the international system and also the effects and changes of endogenous inside the governmentRead MoreU.s. Foreign Policy Policies916 Words à |à 4 Pagescandidate and their proposed foreign policy stance which will be enacted should they be elected. Any nation that is apart of a globalized market such as The United States must be careful when choosing their next president. More importantly they need a president that is in tune with the current international system and one that focuses on a foreign policy based on realism instead of a foreign policy based on idealism. In the following, I will look at the foreign policies of the current presidentialRead MoreU.s. Foreign Policy Policies1297 Words à |à 6 Pageswill explore how the U.S. intervened in Latin America, more specifically after the World War II. Indeed, the U.S. benefitted greatly from the aftermath of the war. A subsection will be dedicated to the Pink Tide in Latin America, with a focus on the U.S. foreign policy under President GW Bush and President Obama. The overthrown Presidents of Honduras and Paraguay were part of this movement and their outset signals a reversal in the region. The different policies set by the U.S. must be understoodRead MoreU.s. Foreign Policy Policies Essay2045 Words à |à 9 Pagesmomentous in its ramifications as it was anticlimactic in its occurrence.â⬠Soviet Premier Gorbachevââ¬â¢s dual policies of glasnost and perestroika had relaxed central control and encouraged self-sufficiency among the republics of Eastern Europe, but it also revealed the underlying economic weakness of the Soviet system. The collapse of the Soviet Union sent shockwaves through a U.S. foreign policy establishment that had, for decades, overwhelmingly focused on the containment of the Soviet Union. LackingRead MoreU.s. Foreign Policy Policies Essay1119 Words à |à 5 Pageswith Clinton at 42% and Trump at 40.9% (as of September 15,2016). Donald Trump, who is a successful businessman, turns to a different path to become a p A governmentââ¬â¢s strategy in dealing with other nations is important in todayââ¬â¢s world. The U.S. foreign policy is desi gned to achieve national objectives. There are many immigrated citizens coming into the United States every year. However, we question the ones who are undocumented immigrants. The United States has concerns about the Islamic State groupRead MoreU.s. Foreign Policy Policies1847 Words à |à 8 PagesSyria because US-backed fighters coordinate and are enmeshed with the outfit. The newspaper also reported that the Pentagon had refrained in 2015 from attacking ISIS militants in and around the Syrian city of Palmyra in order to further the US foreign policy goal of regime change in Damascus. The United States has a long history of forming tactical alliances with political Islam to counter secular Arab nationalists, whom it views as inimical to its interests of dominating the Arab world, with itsRead More U.S. Foreign Policy Essay930 Words à |à 4 PagesStates has remained consistent with its national interest by taking many different actions in foreign policy. There have been both immediate and long term results of these actions. Foreign policy is the United States policy that defines how we deal with other countries economically and politically. It is made by congress, the president, and the people. Some of the motivations for United States foreign policy are national security, economics, and idealism. The United States entry into World War IRead MoreU.s. Foreign Policy Approaches1424 Words à |à 6 PagesThe United States (U.S.) uses two approaches to their foreign policy. The first approach is realism. This viewpoint stresses that the principal actors, states, will pursue their own interests in an anarchical world. States will try to establish a balance of power that restrains aggressive states from dominating weaker ones. The second approach is idealism. This view stresses that states should transform the system into a new international order where peace can prevail. This approach emphases the
Friday, December 13, 2019
Technology Plays Important Role Our Life Free Essays
Technology plays an important role humanââ¬â¢s life and also has developed day by day. Nowadays, the new advanced technology has brought innovations todayââ¬â¢s workplaces that has changed working habits and business. However, before most tasks were done by manual labour but now even difficult tasks can be done by modern technology. We will write a custom essay sample on Technology Plays Important Role Our Life or any similar topic only for you Order Now This essay will explain possible negative and positive effects of technology on the workplace, focusing on de-skilling and requirements of high skills. The new technology which has replaced employees, has increased de-skilling. This means to reduce the need for skill in a job by changing to technology. Robert (2004) points out that employees do not need many experience or ability to work most jobs. Because the new technology could do most tasks instead of them. This may lead to negatively affect employeesââ¬â¢ working life. Robert (2004) states that for example, new electronic cash registers which can do nearly everything for customers and clerks such as calculating the cost, reading laser codes so clerks do not need high mathematical skills or experience. He further adds that they just need to know how to swap an item over a red light and put in a shopping bag. Consequently, Robert (2004) asserts that employers might save money by investment in technology as they may reduce employeesââ¬â¢ salaries to use new advantages of technology rather than peopleââ¬â¢s skills. This fact may positive impact on employers. A requirement of high skills has become more important todayââ¬â¢s business. The reason of this ever-changing technology, spread of globalization and also the extensive information technology which have provided by internet. This may increase positively the need higher-skilled employees (Herman, 2004). He also points out that in the past, workers did not need high skills. Because typing, manual dexterity, physical strength were enough for the standing of living. However, these days, high skill has required by employers such as advanced written, spoken and mathematical skills as well managing and supervising skills (Herman, 2004). This requirement might result in employees positive or negative. Because it depends on whether they improve their skills. In conclusion, technology continues to develop day by day, In addition to this, working habits and requirements have changed todayââ¬â¢s workplace with technology. On the other hand, developing technology has encouraged employees to update their skills. Consequently, employers and employees should follow the technology to improve skills and business. How to cite Technology Plays Important Role Our Life, Essay examples
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