Some objects float in water and other sink. But did you know that you can change whether something floats or sinks by adding a substance to the water? Let's try it and see! Pour water into a cup until ...

If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float. Density is a characteristic property of a substance and doesn’t depend on the ...

If the weight of the displaced water is equal to or greater than the weight of the object, the object will float. Ships are designed ... so a solid steel block would sink. But a ship is mostly ...