sand sink造句

• Objects in liquefied sand sink to the level at which the weight of the object is equal to the weight of the displaced soil / water mix and the submerged object floats due to its buoyancy.
• Objects in the liquefied sand sink to the level at which the weight of the object is equal to the weight of the displaced sand / water mix and the object " floats " due to its buoyancy.
• Scientists then figured out that mixing the black, sticky oil sand with hot water and caustic soda, then shaking it up, separates the components so that the heavier sand sinks to the bottom and the bitumen rises to the top.