Diffusion is the movement of molecules from areas of high concentration to areas of low concentration. With diffusion no energy is required and it is caused by kinetic energy. The rate of diffusion can be affected by many things including temperature‚ molecular weight‚ and movement. To test the rate of diffusion a drop of dark food coloring was added to a glass of tap water and it was timed to see how long it took for the drop to reach the bottom of the glass. This procedure was repeated three
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products and many other applications. Our premises are that if caffeine can help with our skin and energy boost then wouldn’t the same apply to plants? The goal of this biology project is to examine the effect of caffeine on plant growth. Caffeine comes from a plant so it would seem that it could help plant growth. A plausible prediction is caffeine will support plant growth by providing a source of nitrogen or carbon dioxide through its the catabolic breakdown. Could the use of caffeine aid in accelerating
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In this globalization era‚ everything has developed. So that as technology. Because of the development of technology that created by human‚ everyone can do everything easily. One of the new media of technology that very developed‚ even we can say this is a “needs” for human is named as internet. Internet is a system of computer networks that supports World Wide Web. Everyone can easily access the internet. We‚ as users of technology can get almost everything from internet‚ such as news‚ knowledge
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How Does Communication Affect Teamwork? What is the true definition of teamwork? According to www.eubios.info‚ “Teamwork is the coming together of an alliance or group of minds to collaborate‚ co-operatively work on a project‚ solve problems‚ negotiate‚ resolve conflict etc. What is the definition of communication? Communication is a process by which information is exchanged between individuals through a common system of symbols‚ signs‚ or behavior (http://www.m-w.com). In the world today
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"Diffusion - How atoms move through solids" Diffusion means mass transport by atomic motion. The mechanisms of Gases & Liquids is known as random (Brownian) motion and for solids is known vacancy diffusion or interstitial diffusion. Simply we can define diffusion as‚ the movement of particles in a solid from an area of high concentration to an area of low concentration‚ resulting in the uniform distribution of the substance. (Diffusion chapter 5‚ 2008‚ p.1) Ronald D. Kriz(1999) suggests that
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of almost every family besides marine life. The rainforest can provide jobs food and water. Rain is very common in the rainforest because of its high humidity rate. Rainforests have a humidity rate of 77% to 88% all year long. The rain forest is an environment that is rainy and humid. The rain forest only has one season because it’s weather and temperature never change. The temperature never changes because of the high humidity rate and waters thermal resistance. The rain forest has direct
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to make life easier for us. On the other hand‚ phosphorus‚ one of the many essential nutrients for swine‚ has negatively impacted the environment due to swine excretions. Elevating this problem has led to the genetic improvement of swine. Phosphorus is crucial for healthy growth in pigs. Unfortunately‚ 50 to 70 percent of the phosphorus in grain is in the form of phytic acid‚ a compound indigestible by pigs. This is the reason many farmers have to supplement pig diets with an enzyme called phytase
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7.5: An Investigatory Project: Dyeing Using Indigenous Plants In this activity‚ you will plan and carry out experiments to answer specific research questions regarding dyeing of fabric materials. In the process of investigation‚ you will learn to practice the scientific method when you carry out controlled experiments. You can pool and share your results later with the other groups. Questions that you may want to answer through your investigations: 1. Which fabric (a) cotton‚ a natural fiber and
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an enormous amount of the population. Now think about how many people these individuals are close to‚ and how many people they interact with on a daily basis. Cancer does not only affect the patient‚ but also their families‚ friends‚ and acquaintances. Cancer causes emotional strain‚ uncertainty‚ and practical and financial problems. When one takes all of this into consideration‚ they realize what a huge number of people cancer truly affects. It is important that we understand not only what it feels
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AP Biology Osmosis and Diffusion Lab I. Introduction: Diffusion is vital to many life functions of a cell‚ it allow the transportation of vitally important nutrients and compounds without the expenditure of excess metabolic energy. To explain diffusion‚ it is as if a bottle of perfume is opened at one end of the room‚ then in a short amount of time a person at the other end of the room can detect the scent of the perfume; this is the process of diffusion. Diffusion is a movement from a higher
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