If the urine is from a healthy and hydrated person, only chemical pH and spectroscopy tests will tell the difference; without this equipment, there is no difference since urine is more than 99% water anyway (at least if the person is hydrated and healthy).
Otherwise, urine sometimes gains a yellowish-gold tint from the buildup of wastes it carries, but water can also have this buildup on its own from other sources such as rust in the piping.
filtration and then osmosis
A possible hypothesis could be: "If salt is mixed with water and the solution is frozen, then the salt will not separate from the water, as both salt and water will freeze together into a solid."
To separate charcoal and sugar, one method could involve adding water to the mixture and stirring, which would dissolve the sugar but leave the charcoal behind. Next, the mixture could be filtered to separate the dissolved sugar solution from the charcoal residue. Finally, the water could be evaporated to retrieve the sugar.
You could do that. Or you could just suck the kerosene off the surface of the water with a hand funnel.
Separate the sand grains using a fine mesh. Separate salt from the water by using evaporation (leaving the salt crystals behind), and condensation (turning the evaporated water vapor back into a liquid).
No, it is not normal to have feces in urine. Feces and urine are separate waste products that should not mix in the body. If you notice feces in your urine, it could indicate a medical issue and you should consult a healthcare provider for further evaluation.
Let's say you are thirsty, but have no water. However, you do have to use the bathroom to do a #1, if you have glasses, you can use evaporation to separate the water from the urine. Then use condensation to capture that water on a separate plate of glass which you can drink from.
There are many reasons why there could be a urine smell in the bathroom. If there is a warm air vent near the toilet, it is possible urine could have gotten into it. If your water comes from a well, the well may be picking up extra minerals. This can cause water in the toilet to smell like urine.
Nothing
Water is deleted by heating and evaporation.
filtration and then osmosis
Hydrogen and oxygen.
Evaporate water, then the salt would be separated.
separate the hydrogen and oxygen
Hello. You may have a yeast infection or it could be flaky skin from the Uretha causing the white bits in your urine. See your doctor and take a urine sample with you.
Maybe. Could be water, coffee, tea, urine....
Separation by decantation and filtration.