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Speaker 1: We're using chemical reactions to keep medicine cool.

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Speaker 2: It's stem weak and to celebrate, the Museum of Science

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Speaker 2: challenges these kids at Pioneer Charter to design cold packs

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Speaker 2: meant for medicine coolers.

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Speaker 3: They explored with potassium chloride, how many grams are going

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Speaker 3: to affect the change in temperature.

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Speaker 2: Jane McMahons with the Museum says it's an applicable science so.

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Speaker 3: That they can use that information to figure out how

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Speaker 3: much potassium chloride they should use in their coal pack

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Speaker 3: when they finally go to design their medicine cooler.

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Speaker 2: Lieutenant Governor Kim driscoll was on hand to watch the

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Speaker 2: experiments unfold. Ryan and Ethan weren't sweating the spotlight.

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Speaker 1: We're trying to keep the costs low but also keep

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Speaker 1: them like usable so that like it's not like going

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Speaker 1: to break.

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Speaker 2: Apart in Everett J. Will at WDZ, Boston's news radio