Most commonly available substances that are less dense than water is oil, alcohol and plastic. In fact, a number of organic solvents such as acetone, methanol and methylene chloride are also less dense than water. In addition, a number of different kinds of polymer are "lighter" than water, too.
Hmm... potassium and sodium? :D
Some of the liquids that are less dense than water ( that I know of) include oil, alcohol and Hexane(:
Anything that floats in water is less dense than water.
According to Monty Python, that would include wood, ducks, very small rocks, and witches.
Water is a relatively dense fluid so many other fluids will have lower densities. Most oils and spirits are lower density, hence they float on water.
Examples are: lithium, sponge, paper, cotton.
Vegetable Oil.
hydrochloric acid
oil,petrol, diesel
Yes, ice is less dense than water. Ice will float on water because it is less dense than that water. Two related questions are linked below, and you can learn why ice is less dense than water by following those links.
Some objects will float on water as the density of the object is less than that of water. Conversely, if an object is more dense than the density of water, then it will sink.
The density of oil is less than the density of water (which is about 1.0 g/mL). So the two liquids will stratify and create layers based on their comparative densities. Since oil is less dense than water, oil will rise to the surface and can easily be taken out. To test this, you could put water in a bowl or a pot, then put in some cooking oil (it doesn't matter what kind). You will see for yourself that the oil remains on the surface of the water, because it is less dense.
There are different kinds of minerals that float. This will mostly depend on the surface area properties of the mineral. Some of the minerals that float on water include oil, copper ore and so many more.
Some of the physical properties of hydrocarbons include the fact that hydrocarbons are non-reactive and are soluble in water. Hydrocarbons are able to burn over a flame and will produce water and carbon dioxide when reacting with oxygen. Most hydrocarbons are less dense than water and are able to float on water. Hydrocarbons are non-polar and will react with bromine and potassium under certain circumstances.
Generally, glass is more dense than water. (There are some types of glass which are less dense.) You can demonstrate this by gently placing a glass full of water in the sink or tub; the glass will sink, indicating that glass is more dense than water. If the glass were to float, we would know that the glass were less dense. Try this with plastic cup; the plastic is normally less dense, and will float.
Most wood seen on a common basis is less dense than water. These woods floats on water. Some more exotic woods are more dense than water and sink when placed in water.
they are gas, and gas is less dense
That depends on the specific situation. Assuming the liquids just mix, and don't have some other reaction: * Adding water to a liquid that is denser than water will result in a liquid that is less dense (than the liquid that is not water). * Adding water to a liquid that is less dense than water will result in a liquid that is more dense.
Ice! Some wood is also less dense than water. Styrofoam and some plastics are also less dense than water. There is an EXTREMELY simple experiment to test for this. Any object that floats when placed in water is less dense than the water it is in.And of course sperm.
Some materials sink in water because they are more dense than the water. Others float because they are less dense than water.
It has to do with density. If an object is less dense than water (for example, oil), it floats. If an object is more dense than water, it sinks.
They are less dense than water. More dense things sink. Density refers to how tightly the atoms are packed.
Feces (the technical term) are less dense than water. If an object is less dense than water, it floats. If it is more dense than water, it sinks.
Floating and sinking is related to density - if something is more dense (i.e. has more mass per volume) than the fluid it will sink, and if it is less dense then it will float. This is why wood floats in water, and helium balloons float in air - helium is less dense than air and wood is less dense than water. Steel ships float because, although they are made of steel which is more dense than water, the air inside them is less dense than water so the overall effect is floating.
It depends on how dense an object is, if it is more dense it will take less time to sink to the bottom, if the density of an object is less it will take less time to sink to the bottom.
Yes, there are many. For example, anything that floats on water is less dense than liquid water. A number of solids are less dense than liquids. The most common example is ice. Ice (frozen water) is less dense than its liquid counterpart for some very specific reasons. Many other solids are less dense than liquids, as well. Using water as the liquid, you'll find that cork, wood (most kinds) and styrofoam will all float on it. As the liquid becomes more dense, the range of items that will float on it increases. Mercury, for example, is a liquid metal at room temperature. Because it is so dense, many things will float on it. Lead is one example of something that will float on liquid mercury. For a question about substances that are less dense in their solid form than those same substances in their liquid form, use the link below to the related question.