Your brain is definitely going to get a workout with Challenge 4. Elle and Cade need to cross the room in the tool-transfer bucket, and they’re going to need to create a controller that will allow them to move the bucket across the gap with one of them in it. They’ll also need to reverse the bucket and bring it back to pick up their supplies… and to carry the remaining person across. (We know Cade will let Elle go first—he’s polite that way.)
KeywordsStatic Electricity Outstanding Book Battery Terminal Powerful Thing Cool Gizmo
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