Fisika : Hidrolik Sederhana

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Contoh dari aplikasi hidrolik sederhana.

  

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Compare: The Elements

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COMPARE Define :  Compare, tell what is the same about two or more things. Key words commonly used to express compare include:   Like Similar As Same In the same way Too Both Most important Have in common The same as similary As well as CONTRAST Define : Contrast , tell what is the real comparison of an object or explain ways in wich they are different. Key words commonly used to express contrast include: althought yet Whereas However But While Differ Instead Unless Unlike On the contrary Contrary to Even though On the other hard The reverse       DOUBLE BUBBLE MAP Define :  Double Bubble Map is a great way to organize your thoughts when you are comparing and contrasting two things. In the middle you put how the two objects are alike. On the ...
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VOCABULARY

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This is a collection of vocabulary. I hope it is useful for all of us. 1.    Atom is Element composed of one type, the {blank}. 2.   Acid is There are several ways to define an acid , but they include any chemical that gives off protons or H + in water. Acids have a pH less than 7. They turn the pH indicator phenolphthalein colorless and turn litmus paper red . 3. Allotropes is Different forms of the same element 4. Alkaline earth metal is An alkaline earth metal is an element belonging to Group II of the periodic table. Examples of alkaline earth metals are magnesium and calcium. 5. Alkane is An alkane is an organic molecule that only contains single carbon-carbon bonds. 6. Alkene   is An alkene is an organic molecule that contains at least one C=C or carbon-carbon double bond. 7. Alkyne is An alkyne is an organic molecule that contains at least one carbon-carbon triple bond. 8. Allotrope is Allotropes are different forms of a...
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Causes and Effects: Global Warming

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  The rise in earth’s surface temperature as a consequence of greenhouse effect is called Global Warming. The greenhouse gases such as carbon-dioxide and other pollutants absorbs more heat from the sun then it radiates back. This causes an increase in the intensity of heat in atmosphere. The thickening of earth atmosphere because of presence of increased carbon dioxide and other greenhouse gases is called greenhouse effect.   Here's a simple definition of global warming. (And yes, it's really happening.) Over the past 50 years, the average global temperature has increased at the fastest rate in recorded history. And experts see the trend is accelerating: All but one of the 16 hottest years in NASA’s 134-year record have occurred  since 2000 . Climate change deniers have argued that there has been a “pause” or a “slowdown” in rising global temperatures, but several recent studies, including a  2015 paper  published in the journal Science, have...
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Dialog : Between Teacher and Students

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The scientific method is a systematic means of exploring and explaining the world around us. SCIENTIFIC METHOD STEPS 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: Make observations. Propose a hypothesis. Design and perform an experiment to test the hypothesis. Analyze your data to determine whether to accept or reject the hypothesis. If necessary, propose and test a new hypothesis. Examples Dialog Teacher : Mrs. Clara Students : Raffi, Bayu, Novi, Sisi and Anisa. On Thursday, Mrs. Clara was teaching chemistry classes in the classroom. Students antigian follow the lesson. Not to forget, Mr. Clara asked back last week's lesson about "Petroleum". Mrs. Clara : the students, last week we discussed about petroleum. Can you explain back "Petroleum" to me? Raffi : (raises hand) petroleum is a widely used energy source for cooking, ...
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Biologi: Mekanisme Evolusi

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  Apabila   perbandingan fenotif dalam suatu populasi tidak berubah dari generasi ke generasi, dapat dinyatakan bahwa frekuensi gen populasi tersebut dalam keadaan seimbang. Dengan kata lain proses evolusi dapat diartikan sebagai suatu perubahan komulatif frekuensi allel sejalan dengan waktu. Dasar mekanisme evolusi ialah seleksi alam dan penurunan genetik yang merupakan mekanisme akibat seleksi alam ,   mutasi gen , rekombinasi genetik dan aliran gen. Ada empat mekanisme utama evolusi, yaitu : 1.   Seleksi Alam Pengertian Alam mengadakan seleksi terhadap makhluk hidup yang ada di dalamnya. Hanya makhluk hidup yang dapat beradaptasi yang mampu bertahan hidup dan berkembang biak, sedangkan yang tidak mampu beradaptasi akan punah dan gagal melangsungkan kehidupannya. Menurut Dawin terjadi evolusi karena adany a seleksi alam (faktor alam yang mampu menyeksi makhluk hidup. Adaptasi merupakan penyebab terjadinya seleksi alam (mekanisme seleksi ...
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Evidance: Chemical Reactions In Daily Life

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Chemistry.... What is chemistry? Why on earth are there many chemical compounds? Why even happens a chemical reaction? Chemical reactions are changes in elements or chemical compounds so that other compounds occur because of the loose element. The compounds or the initial compounds involved in the reaction are referred to as reactants. Different chemical reactions are used together in chemical synthesis to produce the desired product of the compound. There are many chemical reactions in everyday life, including: 1. Burning Every time we light a match, burn a candle, make a fire, or light a grill, we will see a burning reaction. Combustion combines energetic molecules with oxygen to produce carbon dioxide and water. For example, propane combustion reactions, found in gas grills and some fireplaces, are: C3H8 + 5O2 → 4H2O + 3CO2 + energy 2. Mixing Chemical If we just combine vinegar and baking soda to make chemical volcanoes or milk with baking powder in a recipe, we ...
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