The Discovery Museum of Acton came to second grade today. Our presentation was given by Miss Stella. There were several exciting experiments with liquid nitrogen and dry ice. The take away was that molecules that are cold contract or are closer together. If heat is added, the molecules become further apart.
Ask your kids about our day!
Below is a link to the museum that gives you a pass for a free ticket.
http://tinyurl.com/TSWactivity
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