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How Much Weight Can Boats Float?


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STEM Activity
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Have you ever wondered how a ship made of steel can float? If you drop a steel bolt in a bucket of water, the bolt quickly sinks to the bottom. Then how can a steel ship float? And better yet, how can a steel ship carry a heavy load without sinking? It has to do with the density, or the mass per volume, of the ship (and its cargo) compared to the density of water. In this science activity, you will make little "boats" out of aluminum foil to explore how their size affects how much weight… Read more
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Blog Post
Week 6 of our Summer of STEM features water play and water-based science and engineering activities for lots of splashing, floating, sinking, and sprinkling! Read more
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Blog Post
Week 8 of our Awesome Summer Science Experiments series features Wacky Water - science and engineering activities to explore floating, sprinkling, and moving water. Read more
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Science Fair Project Idea
Have you ever wondered how a ship made of steel can float? Or better yet, how can a steel ship carry a heavy load without sinking? In this science project you will make little "boats" out of aluminum foil to investigate how their size and shape affects much weight they can carry and how this relates to the density of water. Read more
Free science fair projects.