Tuesday, October 6, 2009

What “Cleaning Companies” need to know about MSDSs “Materi

What “Cleaning Companies” need to know about MSDSs “Material Safety Data Sheets”?

In order for a “Cleaning Company” to do its job, chemical products must always be involved.

However, no matter how many or how few chemicals you use, it is important that you have the MSDS for each cleaning product. One should note that an MSDS is not only important to have on hand for safety reasons but it is also a WHMIS “Workplace Hazardous Material Information System” requirement. These sheets must be available to employees; in fact, an employee can refuse to work with a product if not shown the product’s MSDS.

If you are not sure where to get an MSDS it can be obtained from the manufacturer or supplier of that specific product. If your supplies come from a janitorial supplies distributor they will either have the MSDS or be able to get if from a janitorial suppliers distributor, or the main manufacturer. If you buy supplies from a big box store or over the Internet, the supplier might not have the MSDS for the product. In this case, you will have to get it from the manufacturer or you may be able to search for it on the Internet.

Employers should carefully read over the product’s MSDS before using it and share the information with employees. Invest some time into learning product properties, as it can protect your employees, and keep your cleaning company out of trouble in case of a spill or accident.

These are the main details you should look out for and pay close attention to while reading an MSDS:

1.Hazards Identification

2.Composition/Information on Ingredients

3.Fire Fighting Measures

4.Accidental Release Measures

5.Handling and Storage

6.Exposure Controls/Personal Protection

7.Physical and Chemical Properties

8.Stability and Reactivity

9.Toxicology Information

10.Ecological Information

11.Disposal Considerations

All of the above listed points are the most important facts a “Cleaning Company” needs to look out for in order to keep its employees, company, and the environment safe and secure.

Monday, October 5, 2009

seni musik

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    Suku Dayak memiliki bermacam-macam alat musik, baik berupa alat musik petik, pukul dan tiup. Dalam kehidupan sehari-hari suku di pedalaman ini, musik ...
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    Muqaddimah - Seni Musik Dalam Pandangan Islam oleh 'Abd-ur-Rahmān Al-Baghdādī.
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    PENGUATAN FONDASI DAN PILAR SUBSEKTOR SENI MUSIK DALAM ...

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  10. Kurikulum - Program Studi Pendidikan Seni Musik

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3 Grades of Chemicals

3 Grades of Chemicals for Thames Kosmos Chemistry Sets

Chemistry sets from brands like Thames Kosmos, Scientific Explorer and Powertech provide children with hours of educational entertainment. The great thing about these sets is they provide all the chemicals and materials required to conduct the experiments. But what do you do when the chemicals have all been used?

Walmart seems to have just about everything but have you ever found the chemicals aisle? Not only are chemicals hard to find but who even knows what to buy? This article explains the difference between 3 grades of chemicals so you can know the right chemicals for your next school experiment, homework assignment or science fair project.

Chemistry sets can awaken an interest in chemistry and the physical world, setting children on a path to a future career. Even the most basic chemistry sets are filled with experiments that will peak and keep the interest of children who already have a basic scientific interest or knowledge, or those who are absolute beginners. Chemistry experiments are designed to teach things like air pressure and water tension, and how everyday things function. Some of the experiments work with benign objects, while others require chemicals.

Not all the experiments found in chemistry sets like the Thames Kosmos series require the use of chemicals. For those that do, it’s good to know what you’re working with, and what your choices are when you need to purchase chemicals.

Most chemicals are graded, the grade representing the purity of the chemical. A chemical with a higher grade has fewer impurities, or other chemicals, such as metals and water, than those with a lower grade. The cost of chemicals is in keeping with its grade: a higher grade is more expensive than lower grades.

Although there are several different protocols for grading chemicals, there are three basic grades that are the most common and most likely to be used. They are, from highest to lowest, reagent grade, laboratory grade, and technical grade.

Reagent grade, also known as ACS, is the highest chemical grade there is, meaning it is the most pure. It meets or exceeds American Chemical Society standards. Chemicals graded as reagent grade can be used in all situations, from scientific to manufacturing. It is the only chemical grade that can be used in biological experiments.

Laboratory grade chemicals, which may also be referred to as lab, are less pure than reagent grade chemicals, but are still of a fairly high purity. These chemicals would not be pure enough to use in medical or food products, but they are usually more than adequate for science fair projects.

Technical grade chemicals are also called industrial grade, and are the least pure chemicals. Chemicals of this grade are typically used in industrial or commercial applications, but may be adequate for some science fair projects. These chemicals are not acceptable for use in food or medicinal purposes.

If your experiment has stringent requirements for chemical purity, your best bet would be purchasing from a chemical supply house where you can be assured of the grade of chemical you are purchasing. If you are unsure of what grade is needed for a particular experiment, laboratory grade is a safe choice.

So now that you have a handle on that, where do you go to find the chemicals you need? You don’t have to buy chemistry sets to get more chemicals. You can actually purchase just the chemicals at various stores (hardware store, drug store, even the grocery store) rather than a chemical supply house. However, before you get excited about that, there is a problem. When you buy from these types of stores, the chemicals are unlikely to be graded and may contain an unacceptable level of impurities for the experiment being performed.

Now you can buy the right chemical with confidence that it will get the job done. Having the proper chemicals allows you to successfully conduct experiments. It also allows you to replenish the supply of chemicals in your old Thames Kosmos chemistry sets so you can blow the dust off of the set and put it back to good use.

Sunday, October 4, 2009

Homeschooling Facts -

Homeschooling Facts - Research against Homeschooling

A lot of research has been done to proof that homeschooled children’s academic achievements are better than that of learners in public schools.

There is, on the other hand, very little research available to proof arguments against homeschooling.

Certain questions that were raised by experts in the education field can, however, not be ignored.

Regulation of homeschooling seems to lack dismally in most states of the USA. The parent has the freedom to teach any curriculum and some even work without a specific curriculum.

Marty Hittelman, the president of the California Federation for teachers, has a problem with the stringent standards, evaluation and training teachers are subjected to, in public schools, compared to homeschooling parents that are not expected to undergo training or any form of standardized evaluation.

According to the California Federation for Teachers, there are also no standards or specific exit exams imposed on homeschooling students, in the California region. This seems to be the rule rather than the exceptions in most of the states. Even though these arguments proof some problems regarding the control of homeschooling by the state, it is necessary to mention that regardless of this, most children being homeschooled still have much higher grades than most of their peers in public schools.

Further than these specific negatives been pointed out regarding the regulations by the state, the rest of the opposing arguments against homeschooling are just arguments and there is no research available to proof the validity of these arguments.

Many of these arguments point to possible problems, that any parent considering homeschooling should definitely be aware of.

Most of the arguments against homeschooling rather has to do with the ability of the family to provide the correct homeschooling opposed to definite research that homeschooling is wrong for everybody.

There is no argument against the fact that there are many challenges for homeschooling parents and children. Before homeschooling can be successful and be of more benefit to the child than public schooling, the parents will have to realize and overcome these challenges.

Saturday, October 3, 2009

Thinking About Homeschooling Your Children? It’s an Awesome Experience that Delivers Superior E

Thinking About Homeschooling Your Children? It’s an Awesome Experience that Delivers Superior Education!

Many parents are becoming increasingly dissatisfied with the current public education system. The coursework has systematically declined in content and class sizes, typically consisting of 30 or more students, creates a situation where a lack of discipline among students sets the stage for bullying and even more dangerous events. The overcrowding of classrooms makes it difficult, if not impossible, for teachers to exercise adequate supervision.

All of these factors contribute to greater numbers of parents seeking an alternative education venue. How about homeschooling? Educating your children at home is one of your best alternatives. You need not have a teaching credential to home school. Every state has accredited homeschooling programs, with a curriculum defining the subjects you must cover and periodic testing that demonstrates a certain level of achievement equal to public school programs.

Here we take a look about homeschooling programs and how your child can receive a superior education to that offered in the public schools. We hear so much about that ‘quality time’ spent with your kids. Well, homeschooling offers a way to spend hours with your kids every day, in one of the most valuable experiences parents and children can share. Imparting knowledge in this one-on-one environment is one of the richest, most productive and satisfying you’ll ever enjoy.

The only caveat about homeschooling is that you must enroll your child in an accredited homeschooling program. This is not a difficult or highly bureaucratic process, not much more than is required to register your child in public school. A call to your local school district gets you on the rosters in short order.

One of the best features about homeschooling is that you can organize the school lessons pretty much the way you like. A mix of structured and unstructured lesson plans usually works well for almost any schedule. For example, scheduling for sick days: if your child wakes up with a sore throat, has a case of poison oak or a sprained ankle, this doesn’t mean a missed day of school. This may be a good day to read story books, or watch a special on Animal Planet. Learning can take place cozied under a blanket on the sofa, with a cup of soup or cocoa. You’ll also find that your child will have fewer sick days, not being exposed to kids with a cold or fever in the public classroom.

Another wonderful thing about homeschooling is the latitude you have with respect to what you can add to the education of your child. While fulfilling the requirements of the state mandated curriculum, your one-on-one environment allows for comprehensive, in-depth examinations of subject matter. Let’s say your child’s coursework requires that you cover state geography. In public school, a certain amount of time is allotted to this lesson, but when you’re talking about homeschooling, you have the time to pull out the atlas and explain topographical maps. Kids learn faster and more easily when they can take their time and ask as many questions as they like. If your child is fascinated with the subject matter, why not spend the entire school day on that subject? Tomorrow’s another day.

On the other hand, there are bound to be some subjects which your child doesn’t enjoy. In public school classrooms, there’s no latitude in choosing time slots for subjects. How about homeschooling? You can break up the lesson into manageable chunks, diminishing the boredom and frustration. The material will still be covered, in a manner that promotes learning and gets the tasks completed and understood.

This approach also helps a child’s self esteem. There’s no peer pressure by other students which may cause your child to feel ’stupid’, or falling asleep in class, resulting in a poor grade and a lasting dislike for that subject. When it comes to educating children, one size does not fit all. So this is yet another of the advantages about homeschooling: your lessons can be customized to the specific needs of your child.

Television can be a terrific resource for the home schooled child. Animal planet, the Discovery channel and the History channel offer lessons your child might never get in public school. You’ll find abundant TV resources for the language arts, including grammar, composition, and even foreign language lessons.

In addition to television lessons, you’ve got the net. Let’s say your child does not enjoy math. There are hundreds of kid’s learning sites which have interactive math games which are fun for kids and produce results. These sites are run by education professionals, who provide practice tests. These help point out the concepts your child finds difficult, so you know where your future lesson emphasis should be.

Teachers in public school seldom have the time to identify an individual student’s weaknesses. So there you have another plus about homeschooling in contrast to public school. Other net resources include free online and downloadable dictionaries, thesauri i, grammar and spelling game sites and e-books to enrich your child’s learning experience and knowledge base.

Friday, October 2, 2009

Homeschooling versus

Homeschooling versus Public Schooling

When you look at academic achievements only, homeschooled children seem to advance quicker than their counterparts in public schools. A report published by the ERIC (Educational Resources Information Center) shows that homeschool test scores were exceptionally high and well above that of public and private schools. They found that homeschool students in the 8th grade are four years ahead of their peers in public or private schools.

In a study conducted by Dr. Lawrence Rudner, he discovered that learners who were being homeschooled their entire school career, achieved the highest out of all the children.

Interesting information that came from this research was the difference that homeschooling made to the achievements of different race groups. There was very little difference found between the scores of white, black and Hispanic children in homeschooling. On the other hand, there was a significant difference between the achievements of different race groups attending public schools. Eight grade public school learners scored on average at the 58th percentile in math, where black children scored at the 24th percentile. White students scored at the 57th percentile in reading and Hispanic students at only the 28th percentile.

Dr. Ray, in his book, Strengths of Their Own, came to another interesting conclusion. The amount of money spend on tuition had no effect on the achievement of the child. In fact, the cheaper homeschooling option had better results than the far more expensive public schooling. In his research, based on statistics from 1998, he found that a homeschooled child cost parents on average $546 compared to the $5 325 for a public school learner. The average score for the homeschooled child was at the 85th percentile, where the score for the public school learner was averaged at the 50th percentile.

These research studies were done in a number of the states and in all the results the findings were the same. The homeschooled child scored on average 20-25 percentile points higher than their counterparts in public schools.

The research also found that the qualifications of the parent responsible for the schooling had no real affect on the achievement of the student.
November 25th, 2009 | Category: Education, Elementary School, Homeschooling, School | One comment