Archive for the “C1a” Category

use this to compare atoms (and other things) to the size of a coffee bean or a grain of rice (slide the thing at the bottom).
http://learn.genetics.utah.edu/content/begin/cells/scale/

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play from the beginning to about 13.5min for skyscrapers and glass making and then from about 22.5min to about 27.5min for how to make neon lighting.


Watch James May's 20th Century Ep. 06 in Educational  |  View More Free Videos Online at Veoh.com

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most of these are excellent interactive whiteboard resources, highly recommended. click here to access, choose your subject then the ‘view online’option.

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here’s a link to the copper mine that was seen in the ‘rocket science’ program. the company is called nevada copper. you can download a copy of their information booklet here.
nevada copper location

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aqa have changed their link. this is the one you need for the most to date past papers and mark schemes.

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here are a few pictures showing the scale of rotary kilns for cement manufacture. they’re about 30m long and about 3m in diameter, operating temperature about 775degC.
pic 1, pic 2
rotary kiln

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making 2bn tonnes of cement globally every year pumps out 5% of the world’s CO2 emissions – more than the entire aviation industry, so any innovations which will reduce this must be welcomed. british scientists (hooray!) have developed a new type of cement that ‘eats CO2′. you can read all about it here.
cement works in india

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here’s a clip from topgear with james may showing us the future of motoring – a hydrogen powered electric car. handy for when crude oil runs out…

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here’s a good game to test your knowledge of how science works words. usual rules apply.

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smart materials
here’s a load of links about smart materials for c1a chemistry:
a nickel-based alloy that changes shape in response to a magnetic field is attracting interest and funding from some powerful sectors, including the U.S. military.
trick spoons bend when you stir hot coffee.
dental braces and orthodontic archwires: using memory metal causes less pain for patients, and increases the amount of time between needed visits.
nitinol faqs
car parts: shape memory actuators
all these and more can be found in this informative smart materials activity booklet

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