Electric Separation – Hydrogen and Oxygen Up Close!

December 12, 2013
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Thinking about potassium, we’re sure.

Starting in 1807, Sir Humphry Davy used electrolysis to discover a myriad of elements. He used this process to uncover what we now take for granted as potassium, sodium, barium, calcium, chlorine, and magnesium among others.

The process Davy’s used has largely remained unchanged and can be followed by you and your students using the following Electrolysis Apparatus Unit (N99-B-2637-040) found at NADA Scientific.

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The electrolysis apparatus is used to demonstrate experiments in electrical charge/discharge and energy conversion. It features a main unit made of AS resin with fixed stainless steel electrodes, graduated test tubes (2), and a resin test tube holder. The compact design makes these units stackable for neat and easy storage. 

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If you’re looking for a suitable power source, it can also be purchased with the GENECON12  as a set to create the entire lab experience of separating water into its component gases.

Come check out NADA Scientific sell hundreds of educational items ranging from small toys to heavy duty equipment. For over 25 years, we have supplied a range of products to meet the demands of the dynamic educational environment. Our family of catalogs includes Science Education, Automotive Education, HD Instruments, Genecon, Nakamura, Science Gifts, and the Savings Center.

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Give Thanks for Direct Current!

November 27, 2013

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It’s been just over 131 years since Thomas Edison’s Edison Electric Illuminating Company established the world’s first investor-owned electric utility station on Pearl Street in New York City.  On September 4, 1882, the Edison Illuminating Company switched on power to 59 customers in lower Manhattan, providing them with 110 volts of direct current (DC)!

Whether you’re a member of Team Edison or Team Tesla, we think both would agree that the GENECON12 is a fascinating tool to communicate the basics of how direct current works.

ImageWhile it won’t power homes in your neighborhood, it will provide 12 volts of hand powered direct current with changing polarity depending on the direction you turn it.  The GENECON12 produces approximately 200mA of usable current and when connecting one GENECON to another or to a low power source, it will act as a motor.  That’s only one of 22 experimental uses!

Click on either of the pictures to learn more about the GENECON12 as well as other products from NADA Scientific. Receive a complimentary Adventures with the GENECON Activities Book ($10 Value) with your purchase of 1 or more GENECONS.


Play Time at Work!

June 18, 2010

In order to acquaint the new employee’s with the company products, NADA Scientific holds “Show & Tell.” This week I was able to play with the Happy/Unhappy balls. I was handed two black balls. They looked similar and felt like they weighed the same weight; however, when I dropped them onto the table they did not react in the same manner. One, the unhappy ball, fell like a rock. I could see why it was named “unhappy”. The other, the happy ball, bounced like it was play time. I proceed to ask questions about the product, and I found myself bouncing the balls throughout the conversation. While we only spend a few minutes each week having show and tell, I find it both educational and fun!


Appreciate the Inspiration

May 4, 2010
Teachers enlighten and brighten us

Teachers enlighten and brighten us.

Today marks the occasion of an important holiday for science teachers: International Star Wars Day. The epic battles with the incongruous noise in space, the wisdom of Yoda, the painful lesson in over-hyped expectations that was ‘The Phantom Menace’ … all these and more have been inspirational for science teachers throughout the decades since the release of ‘A New Hope.’

What, you thought I was going to talk about National Teacher Appreciation Day? Actually, I am. Because what I am talking about is inspiration: for teachers, from teachers, and to teachers.

We appreciate and celebrate teachers not just because of the things they teach, but because of the ways they inspire us to think about the world in a new way. Whether it is to explore renewable energy, look at light in new ways or to embrace our inner geek, inspiration is what teachers give us.

So in turn let us give them our appreciation, not just this day or week, but as often as we are inspired. Feel free to discuss the teachers who inspired you in the comments.


Science Comics and the Classroom

December 18, 2009

Engaging students in science is a frequent topic in this blog, mostly because it is one educators struggle with often. Previously I wrote about integrating music into a science class and using multimedia in automotive education. Today I am going to talk about a visual medium: comics. More specifically, comics related to science. Comics combine text and images to tell a story.

I am not referring to teaching the (inaccuracies) of super heroes, (though that method is also recommended). No, I am talking about comics written explicitly about real life science. These can range from single panel informational images intended as a teaching aide to comics based on the lives of comics, current or historical. Utilizing them in the classroom can be as simple as hanging a print on a classroom wall to generate organic discussion. For more information on science comics check out Science comics as tools for science education and communication: a brief, exploratory study from the Journal of Science Communication.

So what are your favorite science comics?