Summary
Phil shapes foil into boats to find out why a heavy material can float, then scales up to a giant foil vessel. A hands-on introduction to buoyancy and how shape helps an object stay on the water. ~22 min, free on the official Science Max YouTube channel.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
A ball of foil sinks, but a foil boat floats — Phil finds out why shape matters.
- Why does a flat sheet of foil float but a tight ball sinks?
- What does a boat shape do that helps it float?
- How many coins could your boat hold before it sank?
- What everyday objects float, and what makes them able to?
Quick work-a-long
Vocabulary: float, sink, buoyancy, shape, boat.
Try it: Shape a square of foil into a little boat and count how many coins it holds before sinking. Try a new shape and compare.