An object will float if it has less density than water. In the case of the battleship, you have to consider the total mass - the metal of the ship, plus any contained air.
No, pine wood does not sink in water. It is less dense than water, so it will float on the surface.
No, ice does not sink under a cup. Ice typically floats in liquids because it is less dense than the liquid it is in, such as water. So when you place ice in a cup of water, it will float on the surface rather than sink.
Whether a pure substance floats on pure water depends on its density compared to that of water. If the substance's density is less than that of water (approximately 1 g/cm³), it will float; if it is greater, it will sink. For example, ice (a pure substance) floats on water, while metals like iron will sink.
Some plastics are more dense than water, most are not.
Objects that are less dense than water will float, while objects that are denser than water will sink. For example, wood, plastic, and cork typically float in water, while metals like lead and iron sink. The shape and size of an object can also affect whether it floats or sinks.
becuase they are strong
Floats
a pen floats
It floats!
It floats, but after a while silk will sink.
Really, yes. Technically, no.
No, an apple does not sink. It floats, and that is why the game bobbing for apples can be played.
Most nations sink their own vessels, so the enemy can't get them (leave nothing for the enemy). The Danes sunk their battleships because they were afraid the Nazis were going to find them. So the only way for them to be safe was to sink the battleships.
floats
No, it floats. Try it.
The orange floats with its' peel, but sinks when the peel is removed.
Ice is less dense than water, so it floats.