English For Chemistry

The scientific method is a systematic means of exploring and explaining the world around us. The exact number of steps to the scientific method depends on how you break up the steps, but here is an overview of the basics:     1. Make observations.     2. Propose a hypothesis.     3. Design and perform an experiment to test the hypothesis.     4. Analyze your data to determine whether to accept or reject the hypothesis.     5. If necessary, propose and test a new hypothesis. Lets to read example dialogue!  " Chemistry of fireworks " After mark the attendance card, Mr. yus standing in front of the class, fix his glasses and smilling at us. “How about the task last week? Do you know about firework?” “ We know sir,” we answer with compact. “Is it pretty?” Mr yus convincing “Of course sir” “Oke ,now reed your note book!”   Mr. Yus instruct us. We are glance each other, there is no one who reed the book. Including me. Because I don’t understand any more.

What is Acid Rain? Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.  This can include rain, snow, fog, hail or even dust that is acidic.   What Causes Acid Rain?   Acid rain results when sulfur dioxide (SO 2 ) and nitrogen oxides (NO X ) are emitted into the atmosphere and transported by wind and air currents.  The SO 2 and NO X react with water, oxygen and other chemicals to form sulfuric and nitric acids.  These then mix with water and other materials before falling to the ground. While a small portion of the SO 2 and NO X that cause acid rain is from natural sources such as volcanoes, most of it comes from the burning of fossil fuels.  The major sources of SO 2 and NO X in the atmosphere are: Burning of fossil fuels to generate electricity.  Two thirds of SO 2 and one