Kids could make a raft or float! :) A different way of recycling plastic bottles. Here, a boat is made entirely of plastic wrapped bottles drawn into the shape of a boat. Even a front and rear seat have been made entirely of wrapped bottles.
Refrigerate Without Electricity using clay pots and sand! Makes a portable fridge, cover with wet cloth, when water evaporates, it pulls out the heat making it cold inside. Food can last up to three weeks using this method.