‘I pledge allegiance to the flag of the
United States of America, and to the republic for which it stands, one nation under God,
indivisible, with liberty and justice for all.’
[Music] My name is Robert Rountree and I teach seventh
grade science in Pittsburgh, New York which is upstate New York. And we focus on chemistry,
so I love to tell the kids that I love chemistry because I love the Periodic Table.
I remember my middle school teachers and I remember the demonstrations, so when I started
teaching I kind of used that as a guide that I would try to make sure that I would give
the kids as many demonstrations as possible. I think more times than not I use it as what’s
called a motivator, meaning you try to do something…the research says the kids will
remember whatever you say first and whatever you say last and if you’re lucky they will
remember something in-between. And that’s always the trick of putting a lesson together,
but if you can grab their attention at the beginning then you tend to have it for the
whole rest of the class. You know the idea of having a video for each element is brilliant,
it really is, because that way in one place you can go to and find out what it is you
want to know about that element and then each video obviously leads to more and more questions.
As soon as a kid mentions an element, or I mention an element, it will be like go to
the video. [Muted sound from video playing to the class]
Good Chemistry! Melt on! ‘The demo of the day is the demo of the
demo of the demo of the day!’ [Class cheers] You know when Brady said he was coming I thought
well what can I do, I was thinking, and I don’t know whether I had just seen the zinc
video or I went home and saw the zinc video, but I just thought that would be a really
cool demonstration. You know because there’s the ‘oh ah’ factor and then YouTube, is
it YouTube friendly? I decided in putting this together that I better find out whether
it was legal or not otherwise I was going to have to do something with dry ice, which
would have been awesome but not quite the ‘oh ah’ factor I was looking for. And
I called the USA mint and I got the person who sells coins, and she thought it was an
awesome question, and she said well let me give you some numbers and there is an educational
exemption that if you are melting pennies for educational purposes that that in fact
is okay, it is legal. Is white hot hotter than red hot?
Hi Professor my question is: is it aluminum or aluminium?
What’s your favourite element? What’s your least favourite element?
Hi, what’s the most dangerous element? What first got you interested in science?
So I just press space…or do I have to have the thing on the…? They’re interesting
questions aren’t they? Hey Professor, have you ever played with mercury?