Because air has weight, mass, and density objects will either sink or float in it. Some balloons will float for example.
Because of the comparative density. If the objects density is greater than water it will sink, if less then it will float.
Objects that float in water have a lower density than water. -anonymous18_K
Objects whose density is lower than the density of the fluid they're in float. Objects whose density is higher than the density of the fluid they're in don't.
Because some objects are a lot denser than water so the sink and others are less denser so they float
objects that are less dense float to the top.
Because of the objects density.
objects with higher density than water sink, ones with a lower density float
If an objects density is greater than the waters density it will sink but if it's density is less than the waters density it will float
Because their density is less than the density of coke. And if that's not true of the object, then it sinks.
It depends on the density of a material. The density can be calculated using: density = mass/volume. This means that a very heavy object like a tanker can float on water because it has a large volume which makes its density less than that of water.
Objects whose aggregate density is less than the density of water float in it. Objects whose aggregate density is greater than the density of water sink in it.