Newburyport: Second grader Emma Keith mixes up oobleck at The Annual Science Fair Thursday night at the Bresnahan School in Newburyport. Oobleck is a mixure of corn starch and water, has the consistancy of slim , and has properties of both a liquid and a solid. Emma was one of over 200 2nd and 3rd graders in the fair. Jim Vaiknoras/Staff photo

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