I suspect that "flow" is meant to also be "float", but even with that substitution, it just changes the question from nonsensical to counterfactual.
Most things that float in water do not float in air.
It depends on the bucket and the size of the pumpkin. Most pumpkins do float on water.
I have a marker which float in water.
Any with a density less than water, or, like a metal ship, an object with a shape which makes its volume greater than the volume of water that it displaces and is sealed so that water will not flow into it.
Materials that are less dense than water will float the most. For example, materials like wood, plastic, and cork are relatively light and will float easily on water.
Water,thats why ice float on water.
The types of objects that will float on water are foil, most rubber, and some plastic.
Any with a density less than water, or, like a metal ship, an object with a shape which makes its volume greater than the volume of water that it displaces and is sealed so that water will not flow into it.
Water is unique because it reaches its highest density at 4 degrees Celsius. This means that water is denser as a liquid than as a solid (ice), which is the opposite of most substances. This characteristic allows ice to float on water, which is crucial for aquatic ecosystems and helps regulate Earth's climate.
As long as it can displace a volume of water equal to its mass (ie its density is less than that of the water) it will float. Most paper will have a density less than that of water (or can be so folded) so will float.
Most minerals are denser than water, so they will sink rather than float. However, some minerals like pumice have a low enough density to float on water.
Cats do not float; instead, they try to paddle with all four legs. Most cats will panic and be desperate to escape the water.
An object's density is related to its weight and size. If the density is less than that of water, it will float on the water. If it is greater than that of water, it will sink. Water is not very dense - most things don't float on water. This is because they are denser than it and it cannot support them.