i aslo got this answere supported by my teachers and my advanced science ; science book. word for word. p.s. thank all of you other users for posting you comets ect...
A block of aluminum will float on a pool of mercury at nearly any temperature (except at extremely elevated temperatures (above 350 °C) where mercury is no longer liquid) The density of aluminum is 2.70 grams per cm3, whereas the density of mercury is 13.53 grams per cm3. Therefore mercury is more than 5 time more dense than aluminum! Anything that is less dense than a liquid will float in that liquid. Not only would aluminum float but it float with only 1/5 of it's volume submerged.
Lead would float in mercury, as it is slightly less dense. (11.3 g/cc for lead, 13.5 g/cc for mercury)
Aluminium is 2.7 times denser than water. When in water it will sink below the surface, being more dense. Another way to look at the problem is to say that the aluminum, on displacing its own volume of water, will receive upthrust equal to the weight of water displaced and will thus seem lighter. As the upthrust will be less than the weight of the block, it will not be sufficient to cause the block to float.
Some pool thermometers do contain mercury, but there are alternatives available that use different substances like alcohol or digital sensors. If you are concerned about the presence of mercury in a pool thermometer, look for options that explicitly state they are mercury-free.
You can't float in a pool because the density of your body is greater than the density of water, causing you to sink instead of float.
you float...
a ocean because the salt water makes you float and a pool water doesn't.
Pumice floats in water, but for other rocks you'd need to find a fluid that's more dense than the rocks to float them in. For example, mercury is almost 6 times as dense as granite, so a lump or slab of granite will ride right up there high in a pool of mercury.
because u swim in the pool and it relaxes Ur body when u float on a float! DA!
You can make a pool float using household items by using inflatable pool toys, pool noodles, or even large plastic containers. Just make sure they are sturdy and can float safely in the water.
In the pool, or in any large body of water.
You are way less dense than mercury, so you would actually float. However, you would also probably get a lot of heavy metal poisoning and nervous system abnormalities.