An object will float if it is less dense than the water (or other liquid). If it is denser than the water, it sinks.
A pencil floats, a human no float, a feather floats, paper floats, ice floats, keys do not float, rocks do not float, coins do not, flip flops float. Second answer: I think you meant to ask, 'What floats and then some time later starts to sink. If that is what you meant, the answer is: There are absorbent substances which float when dry, then after absorbing water while they are floating, they increase in density and then sink.
It depends on the density of an object. If the density is higher than the density of the liquid, the it sink. If it's less, it floats.
Many things in the world can sink including rocks, clay balls, etc. but it's a matter of what the objects mass is that determines if it sinks or floats.
Not all small objects float; some small objects are denser than water and will sink. Whether an object floats or sinks depends on its density compared to the density of the liquid it is placed in.
It is incorrect to say that heavy objects sink in water because... A big slab of wood is heavy, right? Wood floats. For one example.
Floats
Yes, the size of a material can affect how well it floats or sinks. For example, larger objects with the same density as smaller objects tend to sink due to their greater weight. Additionally, larger objects may displace more water, which can influence their buoyancy.
a pen floats
If a block of wood floats in water, it means that the density of the wood is less than the density of water. This is because objects with a lower density than water will float, while objects with a higher density will sink.
The buoyancy of an object determines if it will float or sink. Objects with a density less than that of the fluid they are placed in will float, while objects with greater density will sink. Additionally, the shape and size of an object can also affect whether it floats or sinks.
Whether an object sinks or floats depends on the objects buyoncy. If an object has a higher buoyancy then water it will generally sink, and less it will float.
Buoyancy is the property of matter that describes how well an object floats. It is determined by the relationship between the density of the object and the fluid it is placed in. Objects with a lower density than the fluid will float, while objects with a higher density will sink.