![Itiseasiertofloatintheoceanthanitistofloatinaswimmingpo...]( "Itiseasiertofloatintheoceanthanitistofloatinaswimmingpo...")
- 问题详情：Itiseasiertofloatintheoceanthanitistofloatinaswimmingpool.Doyouknowwhy?Oceanwaterisfullofsalt（盐）—andsaltwatercanholdup（支撑）moreweightthanfreshwater.（淡水）Seeforyourself!YouWillNeed:●3cupsofwarmwater●Measuringcup●Wide-mouthedjar●Salt●Spoon（勺...
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