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Columbus Day STEM and science activities for K-2 and grades 3-5: a sink or float paper and foil boat challenge, design cycle pages, wind and sail basics, and navigation by stars and compass. Print and Google Slides, answer keys included. How did wooden ships float, sail, and find their way in 1492? Students build and test boats, record data, and explain their results. A short reading also shows how Taíno paddlers traveled between the Caribbean islands by canoe, and notes that many places celebr