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Buoyant

usgb/ˈbuːjənt/Volume
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Not Just WaterPlay
While 'buoyant' often relates to water, it can apply to any liquid or gas where something can float. SlideThe helium balloon was buoyant in the air.
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Physics TermPlay
'Buoyant' is used in physics to describe why objects float, relating to buoyancy force. SlideThe science project explained how the boat's design made it buoyant.
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Weight PerceptionPlay
Something that's 'buoyant' often seems light or weightless. SlideHer inflatable raft was surprisingly buoyant on the lake.