Author Archive

27 08 2008

Expansion & Contraction

Posted by: dscanlon in video

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26 08 2008

What has this heart valve got to do with solids, liquids & gases?

Posted by: dscanlon in video

heart valveheart valve story

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20 08 2008

States of Matter

Posted by: dscanlon in image

Comet tails

Comet
This is a comet.Find out what a comet’s tail is made from. First correct response gets a prize!

What is happening in this picture?
Why?
evaporation

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