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In this activity, learners explore the chemical reaction between water and effervescent antacid tablets. This hands-on activity models how a material can act differently when it's nanometer-sized.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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This activity teaches combustion as the interaction of a fuel source and oxygen.

$1 - $5 per student Ages 4 - 8 5 to 10 minutes