Sink - When something falls to the bottom of water, Float - When something stays on top of water, Weight - How heavy something is, Surface - The top part of water where things float, Hollow - Something that has air inside, Density - How heavy/tightly packed an object is for its size, Buyoancy - The ability to float in water,

Sink or Float

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?