Liquid Nitrogen Badge
(Discover Science & Technology)
By Karen Harwick, Troop #144
Disclaimer: Liquid nitrogen can be dangerous and all interactions should be supervised by an experienced adult. Please learn and follow all safety rules.
Preschool: Do three requirements including the two starred *
Level 1: Do four requirements including the two starred *
Level 2: Do five requirements including the two starred *
Level 3: Do six requirements including the...
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