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Carrying Charges: Testing for Conductivity
SciencenterAdd to list DetailsLearners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up). They are given water, salad oil, alcohol, and vinegar as liquids, salt and sugar as...
Fruit Juice Mystery
SciencenterAdd to list DetailsIn this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar. Learners add vinegar (an acid) and washing soda solution (a base)...