Definition and Examples of Chemical Elements

Benda yang ada di sekitar kita terdiri dari bagian-bagian yang kecil sebagai penyusun benda tersebut. Misalnya air yang mengandung gula. Ketika air gula dipanaskan, ada bagian yang menguap, yaitu air. Air mengandung unsur oksigen dan hidrogen. Pada saat itu terdapat pula bagian gula yang menghitam seperti arang yang berupa karbon.
Dengan demikian, gula terdiri dari bagian-bagian yang berupa karbon, hidrogen, dan oksigen. Bagian-bagian itulah yang disebut unsur.
Apa ya pengertian unsur? Unsur adalah zat tunggal yang tidak dapat diuraikan lagi menjadi zat lain yang lebih sederhana melalui reaksi kimia biasa. Jumlah unsur sampai sekarang ada 114 jenis. Dari 114 jenis unsur itu, sebanyak 92 jenis unsur terdapat di alam, sedangkan sisanya merupakan unsur buatan.
Elements classified elements into metals and non-metals. Metals such as gold, silver, iron, aluminum, copper, mercury, and so on. Non-metals such as hydrogen, oxygen and sulfur.

In nature there are 92 kinds of natural elements, while the rest are artificial elements. The total number of elements in the approximately 106 types of elements.

Examples of Chemical Elements
Here are some examples of chemical element symbol besera.

No.	Name Elements	symbol	information
1	Hidrogen	H	Gas
2	Helium	He	Gas
3	Lithium	Li	solid
4	Karbon	C	solid
5	Nitrogen	N	Gas
6	Oksigen	O	Gas
7	Fluor	F	Gas
8	Neon	Ne	Gas
9	Aluminium	Al	solid
10	Silikon	Si	solid
11	Fosfor	P	solid
12	Sulfur	S	solid

Eclipse of the Sun and Moon

Hi friends, according to astronomers, a solar eclipse occurs tomorrow, on 21 May 2012. This is the first solar eclipse occurred in 2012 fren. Want to know what and how the eclipse of the sun, let's see the article about the eclipse of the sun and the moon follows.

  The process of solar and lunar eclipses
The eclipse is the sun or the moon closed suddenly. The eclipse can be divided into two, namely the lunar eclipse and a solar eclipse.

Lunar eclipse occurs because sunlight toward the moon blocked the earth. Because sunlight leads to the earth, the earth was formed behind the shadow, the shadow of total (umbra) and a dim shadow (penumbra). Total lunar eclipse occurs when the moon is in the umbra region. If the moon is in the penumbra, the eclipse happens is that a lunar eclipse or eclipse parisal part. Lunar eclipse occurs at night time. The occurrence of a lunar eclipse can be seen in the following figure. If we look at the picture below, a lunar eclipse occurs when the position of the Sun - Earth - Moon are in a line.   Now, if a solar eclipse occurs when moon passes between the Earth and the Sun. Earth's umbra in the area will experience a total solar eclipse, while those in the Earth's penumbra will experience partial solar eclipses (partial). Solar eclipse occurs in the daytime. The process of solar eclipse can be seen in the following figure. We see that the position of the Sun - Moon - Earth is in a straight line.

What is the Higgs Boson, God Particle

Terms Higgs Boson increasingly popular today .. why do not you? What the heck is the Higgs Boson? Kok also said people Higgs boson is a particle of God?
What is the Higgs Boson, God Particle

Higgs Boson became famous for his newly discovered by a CERN scientist named Peter Higgs, who announced on July 4, 2012 days ago. Boson is the name for the particles tend to gather with like particles themselves. Higgs boson is a boson that also interacts with other particles making up the material and cause other particles making up matter has mass (aka weight).

Higgs Boson also spelled as God for Higgs Boson particle that causes other particles making up matter has mass, because the matter has mass can therefore form everything including planets, stars and the universe.

Discovery of the Higgs Boson

What is the Higgs Boson, God Particle

Here is the core of the standard model, which was developed in the early 1970s: the whole universe is made up of 12 different particles of matter and four styles [source: European Organization for Nuclear Research]. Among them 12 particles, you'll find six quarks and six leptons. Quarks make up protons and neutrons, while family members leptons including electrons and electron neutrinos, neutral associates charged. Scientists think that leptons and quarks are separated, that you can not separate them into smaller particles. Along with all of the particles, the standard model also recognizes four forces: gravity, electromagnetic, strong and weak.

Without the Higgs field and the Higgs Boson, which is composed of atomic particles can not be formed. Similarly, the chemical bonds and the objects of the universe.

Occurrence Process Tidal Sea

Hi friends, have often played to the beach or not? if ever, would you ever seen the receding water lau, so it looks sprawling sand beaches, or any time you see the beach where the water is getting up almost covering the entire sand beach, the ocean is called the water was high tide. Let us see how the process of ebb and flow of sea water is ..

Occurrence Process Tidal Sea
As you discussed earlier, the earth revolves around the sun, while the moon revolves around the earth. In addition, the earth and the moon also rotates on its axis. Due gerakangerakan the position of the sun, earth and moon are always changing. Changes in these positions affect the level of sea water on the surface of the earth, commonly called high tide and low tide.

Tides and tides occur because of the force of gravity by the sun and the moon to the earth. Note the figure below (low tide = ebb, high tide = pairs)
  Sea water in the surface of the earth when the earth high tide is in line or face the moon or sun. Though the Earth-sun distance of about 375 times the Earth-moon distance, but due to approximately 27 million solar masses in mass, therefore by the gravitational influence of the sun on sea water still visible, which is about half the force of gravity by the moon.

Rising tide of sea water there are only a few centimeters, but there are approximately 20 meters (maximum 6 storey building), for example in Canada. In Indonesia, the highest high tide of about 2-3 meters.

Utilization of Light Properties

Objects that utilizes the properties of light are called optical instruments. Optical devices such as magnifying glass, cameras, microscopes, binoculars, and OHP. What are the usefulness of optical instruments such? Consider the following explanation!

1. magnifying glass

Lup is a magnifying glass. Loop consists of a convex lens. Small objects will look great when viewed with a magnifying glass. You can make a simple loop.

2. camera

The camera is an optical instrument that records the shadow of the object. The camera is used to photograph objects up close. However, the camera with lens distance photos, can capture objects located so far.

How does the camera work? The camera has a convex lens. When we took a photo of an object, the object lens cast a shadow on the film. The shadow is real and inverted. Furthermore, the film is released from the camera. The film brought to the photo shop to be processed and printed on photo paper.

How to make a sharp image formed? When photographing, we have to adjust the lens. The lens can be brought forward or pushed back with a regulator. In automatic cameras, the location of the lens is set automatically.

3. microscope

Object optical microscope is used to view very small objects (not visible). For example, bacteria, fungi, or other microscopic objects.

4. Overhead Projector (OHP)

Overhead Projector is a device for projecting images or text on the screen. How does the OHP? Wishing projected image must be photocopied onto plastic transparencies used. Plastics contain images placed on the glass. Then, transparencies lit from below. Rays transmitted to the projector head. Well, head projector will form a shadow on the screen.

5. periscope

Periscope telescope with a mirror is flat. Used on a submarine periscope to see objects on the surface of the water.

Healthy Recipes Baby 9 Months

Hi mother .. how are you? longer care for infants age 9 10 months ya know? Aged 9-10 is peraliahn age Makananan Complementary feeding (MP-ASI). After enjoying the fine-textured soft porridge and gruel strain rougher textured, now the baby is ready to know the food team. The texture of the food is grown close to the texture of food. only, the texture made ​​smaller - by chopped - and more flabby. At this stage, babies begin to recognize the food delivered to the family (table food). The habit of giving finger food at earlier ages, can be continued at this age.


Healthy Recipes Baby 9 Months

Make that another mother looking for a recipe makananan healthy baby 9 months .. ya no baby food recipes for a healthy 9 months old and delicious.

Healthy Recipes Baby 9 Month: Yellow Rice Porridge Filter

ingredients:

     1 sdn white rice, soak 2 hours
     200 ml unsweetened soya milk / water
     1 cm turmeric, crushed
     1 slice lime leaves, discard the bones leaves
     1/2 bay leaves
     3 cm base of the stalk lemongrass, crushed
     25 grams of salmon meat / Gindara / Snapper / Pangasius
     25 grams of cauliflower florets
     1/4 tsp extra virgin olive oil (if any)

How to Make:

     Cook rice, soy milk / water, turmeric, lime leaves, bay leaves, and lemongrass until rice is tender.
     Enter the fish and cauliflower, continue cooking until selutuhnya cook. Set aside to cool. Dispose of turmeric, lime leaves, bay leaves and lemon grass
     Yellow rice porridge Filter-press pressed by using the back of a spoon on top of the filter. If smoothed using a blender, process until the porridge is not too smooth. Add olive oil, stir hinga average. Immediately give a slurry filtered to toddlers.

Teriyaki Beef Recipes

Hmm .. weve tasty beef when cooked, either fried, baked or stir-fry ... For mothers were again looking for beef recipes, this time we are meat recipes, namely: Saute Meat Seasoning Teriyaki

Teriyaki Beef Recipes


Meat Recipes: Meat Seasoning Teriyaki Stir-fry

ingredients:

     200 gr Dagi in the cow has, sliced ​​lengthwise
     1 onion, sliced ​​round
     4 cloves garlic, finely chopped
     2 tablespoons teriyaki sauce
     1/2 tablespoon soy sauce
     1/2 teaspoon pepper
     1 tsp sugar
     2 tablespoons margarine
     200 ml hot water
     salt to taste

How to Make Meat Seasoning Teriyaki Stir-fry

     Heat margarine, saute garlic and onion until wilted baeang.
     Insert the meat and cook, stirring frequently, until the meat changes color
     Enter teriyaki sauce, soy sauce, sugar, salt and pepper and stir well
     Pour water, cook over medium heat while stirring occasionally until meat is tender
     Serve warm.

Maskan beef teriyaki recipe above for four servings .. good luck.

Resep Rainbow Cake

Hmmm .. like today again ngetrend cake called rainbow cake .. interesting shapes and colors .. colorful like a rainbow, the taste is sweet and gentle. Rainbow cake seemed appropriate for the party served ualng year or at the time of Eid or Christmas.

For the mothers who want to try making your own rainbow cake, here there are two rainbow cake recipe that I serve. that one of the food.detik.com and rainbow cake recipes from the magazine Femina. Let us look wrote the recipe rainbow cake

Make a rainbow cake recipe
Rainbow Cake Recipe
ingredients:
Red 15 eggs, 7 White (510 g)
250 g Refined Sugar
175 g Flour Key
2 g High Fiber
15 g Milk Powder
10 g cornstarch
20 g Starkies
Material B:
70 g liquid margarine
180 g of liquid Wijsmann
15g or 1 tablespoon sweetened condensed milk
5 g/1sdt Toffieco Vanilla Butter
15 g / 1 tbsp Toffieco Fuel
Material C:
Toffieco. food Colour
Bright Red, Orange, Egg Yellow, Moss Green, Blue, Violet
Material D:
480 g cream cheese
140 g sugar
400 g fresh cream

How to make a rainbow cake:

     A Shake ingredients with mixer at high speed until stiff, then turn off the mixer.
     Put the ingredients B and mix gently until blended.
     Divided into 6 parts @ 200g, and give each section with material C. Ranging from light colors to dark colors. (Use the dye actually food coloring).
     Enter 6 pan, 20x20x3 cm and bake 20 minutes at 180 C heat
     Remove and let cool.
     Material D: Beat cream cheese and powdered sugar until smooth and creamy.
     Enter a fresh cold cream and beat again until smooth and store in the refrigerator.
     Brush each cake with ingredients D and stacked again.

Now that he bunda rainbow cake recipe first. For 30 pieces

Benefits of the Internet in the World Education

What are the benefits of the internet? Some of the benefits of the internet you already know from the discussion in the future. You will know more benefits of the internet to know what is on the Internet. According to Edy Purwanto (www.litbang.depkes.go.id/ tick / media / Pengantar_WWW.doc), Internet content can be divided into two groups, namely the content to their personal and professional content for the service. Some of the contents of the internet for personal life such as health information, leisure, hobbies, personal development, spiritual air, and social information. While the content of the internet for professional life (regarding jobs and careers) among others, information science, technology, trade, stocks, commodities, business news, professional associations, business associations, and other communication forums. When all the information was in the grip of your hand, you can rule the world and determine what should be done. And when the internet can be enjoyed by all people, you can imagine for yourself the benefits that can be obtained.
Benefits of the Internet for educationIn class VII you have studied the role and benefits of information and communication technology. Some of them are the role and benefits of Internet technologies such as e-government, e-learning, e-commerce, e-business, and internet banking. Try to go back and study that chapter! In http://perpustakaanonline site. blogspot.com, mentioned several other benefits of internet technology, which is as follows.
Well here is the benefits of the Internet in the World of Education ...1. As Internet Information WarehouseWith the internet, the world of science more open to anyone. Rapid dissemination of information, any information anywhere in the world can be found in an instant. Information was hard to come by, it's been a big deal anymore. By utilizing a search engine or search engine, information retrieval can be done easily, either in the form of data, news, files, images, music, and movies. Some online encyclopedia can also be used as a reference to add to knowledge. An example that is quite popular is Wikipedia (http://id.wikipedia.org). Through the Internet, you can also share information and knowledge with other users. An example is to create a personal site (blog or weblog) to share their knowledge and stories or participate in a particular community on the Internet.
Benefits of the Internet in the World Education
2. Internet For News OnlineNow no need to wait until the morning to read the latest news. Many web pages (the page on the website) that provides news of the world are up-to-date (may be updated from time to time according to the news there). Any news there, ranging from sports, politics, finance, science and technology, weather, economy, culture, and so on. Some newspapers / magazines in Indonesia also provides online news services.
Benefits of the Internet in the World Education
3. As Internet Online LibraryThe special shape of the Internet as a repository of information is available online library facilities, which are clusters of web sites world-class library. On this site, you can read books online and offline (downloaded or website content stored on a computer first, so it can be read without requiring an Internet connection). What books exist, ranging from encyclopedias, novels, textbooks, technology, computers, comics, and so on. Remember, not all books are available for free. There are some sites that require us to purchase online or to contribute a certain amount. Here are a few websites online library providers.

    http://onlinebooks.library.upenn.edu/
    http://perpustakan-online.blogspot.com
4. As Internet Distance EducationInternet as a repository of information and online library as well as the ability to build interactive communication makes it possible to do distance education. Distance education means that teachers and students or faculty and students do not have to always be in one place for education. Well, how come? Yes. Students can access their school website and follow the educational process through the computer in front of him. Anytime, 24 hours a day. No matter where I was, at home or when traveling. The subject matter to be mastered by the student teachers have been provided on the website. If you need a consultation, students can interact with teachers via e-mail (electronic mail), chat, or chat live via internet phone. This concept is often called e-learning.
On the internet there are many sites which provide the subject matter for a particular level of education. There are also sites that discuss common knowledge in a certain field. Information about the world of education is also easily found on the internet. Some examples of educational sites are as follows.

    http://jardiknas.net, official education website Ministry of Education. In it there is a link to the websites of schools / colleges and other sites are close to the world of education
    http://www.e-dukasi.net, presents the subject matter of the elementary, junior high, to high school / vocational school with an interactive learning system.
    http://www.e-smartschool.com/
    http://www.bukamata.com/

Understanding Intranet

There is internet, there are intranets and extranets. What is intranet and extranet? Intranet is also a computer network. The difference is, when the Internet is a global computer network, the intranet is a computer network with a limited coverage area. According to the website Wikipedia (en.wikipedia.org), an intranet is a computer network within a limited range (private), which uses internet protocols (TCP / IP) to share information with the internal organization of a system to its members. In short, using the means of communication and intranet applications such as the Internet, but in a limited scope.
Understanding Intranet
Intranet is often applied in offices, companies, and institutions. With intranets, companies can share information to employees without worrying information was leaked. This information can not be accessed by Internet users because no available means of access to the corporate intranet.
What if the company wants employees who are abroad, including sales, distributors, and agents can continue to follow the development of corporate information? Sometimes intranet network connected to the Internet with the intent to provide company information to specific users that are outside the area of ​​the intranet. These networks are called extranets. Extranet equipped with a strict protection so that only certain users have the right to access information in it. Thus, although there is a physical connection between the Internet and extranet network, Internet users can not access the information in the extranet. Conversely, employees who are overseas can still access the company's internal information through extranets.
Intranets and extranets using the means of communication, applications, tools, and standards are the same as the internet. Therefore, further discussion of this book will focus on the internet.

DNA function

DNA serves convey genetic information from parent to the next generation and regulate the development of the body's metabolism. Thus, it can be said that DNA is the gene itself. DNA can also oversee the activities of the cell by ordering the establishment of all kinds of proteins (enzymes) in the cell. DNA in the nucleus of cells and the formation of a protein generally occurs on ribosomes, which is in the cytoplasm. Thus, the information in DNA to be translated first by a particular compound and carried by the compound from the nucleus to the cytoplasm. DNA will form other compounds in conveying genetic information that will instruct the synthesis of proteins. The compounds formed by DNA, the messenger RNA, transfer RNA and ribosomal RNA.


DNA function

Function compounds formed by DNA
1) RNA-d

RNA-d duty convey genetic information from DNA in the form of genetic code from the nucleus to the ribosomes in the cytoplasm. Genetic code N in the form of base sequences called codons. RNA-DNA formed by d if necessary alone. When it is completed the task, RNA-d will be destroyed in the plasma. Molecules of RNA-RNA d is the longest in the cell.

2) RNA-t

T made ​​by RNA-DNA in the cell nucleus, but it is always present in the cytoplasm and very small molecular size. RNA-t function is to transport amino acids to the ribosome in accordance with the codes contained in the RNA-d. Each amino acid requires a special t-RNA. In RNA-t, there are two important parts, namely the anticodon (base sequences N) associated with the codons and the amino acids that bind to the other.

3) RNA-r

RNA-r serves as an engine builder that moves in one direction along the RNA-d. RNA-r created by a specific gene in the DNA of chromatin attached to the nucleolus. RNA-r even if not used always present in the ribosome.

Various kinds of substances on Food Additives

In the world there are different types of food served is hygienic, attractive, durable, and a tempting aroma. These foods are usually given additional material for a specific purpose, such as providing savory flavor, preserve, colors, sweeteners, and provide aroma. What is the meaning of additives? Additional substances used in food with a specific purpose is called an additive.

Various kinds of substances on Food Additives
The use of these additives can also be found in foods that are durable, such as meat and fruit sold in cans. Under normal conditions, these foods do not last long and quickly rot. However, after the meat and fruit has multiple production processes with added preservatives and packed in cans, food can last longer than usual.
Besides being used in food additives are often added to drinks. Drinks that often we enjoy the release thirst, often contains additives. For example, a syrup containing dyes and artificial sweeteners. With the addition of the additive in the process of making syrup, resulting syrup was sweet and had a tantalizing aroma.Kinds of Substance AdditivesBased on the material, we can distinguish the additive into two types, namely:
1. Additives Natural Substances
Natural additives are additives that can be derived from nature, such as leaves, pandan leaves, turmeric, ginger, palm sugar, and tamarind.

natural additives
2. Additive Substance Synthetic (Artificial) synthetic additive is a substance that is made by a series of chemical processes. Substance obtained from the chemical process when consumed in excess can cause negative effects on the health of the body. Some foods that fall into the synthetic additives include formaldehyde, Monosodium Glutamate (MSG), formalin, and saccharin.
artificial additives
Typically, synthetic additives are more dangerous to health when compared with natural additives. Because the process of making synthetic additives requires a series of chemical processes that are sometimes experienced chemical process is not perfect so it can have a negative impact on the consumer's body.
Some functions of additives added to foods include:

    Improving the nutritional content of food.
    Maintaining the quality and texture of the food that still looks fresh.
    Keeping the food can be durable.
    Giving color to food so it looks interesting.
    Giving relish the food.
    Give flavor to food.

Factors Factors Affecting Photosynthesis Process

Green plants and green algae capable of photosynthesis with the help of sunlight. The process of photosynthesis produces nutrients that plants need to grow and thrive. If adequate, the food is stored as a food reserve that can be utilized as a food source other living beings, such as animals and plants. Other products of the process of photosynthesis is oxygen used for respiration of all living things.
Factors Factors Affecting Photosynthesis Process

Factors that Affect Plant Photosynthesis Process
The process of photosynthesis is affected by various factors, including:

a. sunshine

The sunlight is needed in the process of photosynthesis. The sunlight serves as a source of energy to convert water and carbon dioxide into glucose. Absorption of sunlight by plants depends on light intensity, duration of exposure, and the wavelength of light.

b. water

Water plays an important role in photosynthesis because it is the raw material of photosynthesis. The presence of water also affects the stomata work. When the shortage of water, the stomata close so CO2 unobstructed entry. When there is no water and CO2, the photosynthetic process can not be done.

c. temperature

Temperature effect on the working of enzymes in the process of photosynthesis in plants. Each temperature rises 10 ° C, the enzyme increased 2-fold. A good time for the process of photosynthesis in plants is during the day as the temperature during the day is high enough so that the work can enzimenzim maximum.

d. age leaves

When the age of the older leaves, the slower the photosynthetic activity. Yellowing leaves contain chlorophyll which fewer and fewer. This condition lowers the function of chloroplasts.

Human Circulatory System

Hi student friends all, this time we are learning about the human circulatory system. Semuakan friends know, that the blood in our body constantly pumped by the heart and transmitted or distributed throughout the body kuta. Well let's look at the human circulatory system was how the heck?

Human circulatory system is a closed circulation and duplicate. Why so? Thus, the meaning of "closed" here is blood transported and circulated throughout the body in the blood vessels. Then the "duplicate" means the one-time circulation, blood enters the heart 2 times.

Human Circulatory System

Circulatory duplicate is composed of small and large blood circulation.

Circulatory system
Blood circulation in the lungs (small circulation)
It says little circulation because, only circulation from the heart to the lungs. So the CO2 containing blood from the right heart chambers entered through the pulmonary artery into the lungs by the pulmonary vein was brought back to the left atrium of the heart. Blood in the left atrium of heart already contains O2

Blood flow scheme as follows:

The right ventricle of the heart - the pulmonary arteries - lungs - pulmonary vein - left atrium of heart

The circulatory system (systemic circulation) is the circulatory system that carries blood that carries blood from the heart throughout the body. Blood coming out of the heart of a lot of oxygen.

mechanism of blood flow as follows:

Left ventricle - aorta - the artery superior and inferior - the cells / tissues of the body - the inferior and superior vena cava - right atrium of the heart

Colon and Functions

After the small intestine, large intestine or colon followed. The colon has a length of approximately 1.5 to 1.7 meters. The colon consists of the cecum, which is a shape like a big bag of the boundary between the colon and small intestine.


At the bottom there is the formation of additional cecum intestine called the appendix or the appendix. Appendix ± 6 cm in length, and its function is not known with certainty. This appendix can become inflamed appendicitis are often called or known as appendicitis.
Colon Function
What is the function of the colon is this friend? It's her bowel function, namely:

     saving and elimination of food waste,
     maintain fluid and electrolyte balance, by absorbing water
     degrading bacteria.

Another part of the colon, the ascending colon (colon ride), transverse colon (transverse colon), and descending colon (colon decreases). Lining of the colon there is no villi, but has a mrnghasilkan kripta kripta-lubricating mucus. In the colon occurs only water and electrolyte absorption and decay occur leftovers assisted bacterium E. coli.

There is movement inside the colon is weak. Stool accommodated temporarily. If feces collected quite a lot, there will be a movement to push the stool toward the rectum so that the desire of defecation (bowel movement).