October 21st, 2009Building Blocks Video
In this episode Cathleena talks about atoms and molecules as the building blocks of chemisty using play dough atoms to illustrate the structure of molecules.
Recent Photos
In this episode Cathleena talks about atoms and molecules as the building blocks of chemisty using play dough atoms to illustrate the structure of molecules.
Recent Photos
September 23rd, 2011 at 5:20 am
I’m impressed by your writing. Are you a profesiosnal or just very knowledgeable?
September 28th, 2011 at 8:28 am
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