Objects float better in salt water than in fresh water because salt adds mass to water and makes it denser. This density causes objects to float better on the surface. The denser the water, the easier it is for objects to float on top.Know More
Less salt in water means things are not as buoyant, while more salt dissolved in water elevates objects. Density is defined as mass spread out over a particular volume. More particles within a smaller area leads to denser objects. Less dense objects float on more dense objects.
Simple science experiments show how salt causes things to float better. Take six containers of equal volume and add enough water to float an egg. Add increasing amounts of salt to five containers while leaving the sixth with no salt. Measure how each egg floats below and above the water line.
The Dead Sea in Israel is an example of dense salt water. The density of minerals in the Dead Sea are the highest concentration in the world, according to the Jewish Virtual Library. The reason more minerals stay in the water of the Dead Sea is that more water is evaporated from the sea than what goes into it. This evaporation decreases the amount of water and increases density of dissolved minerals.Learn More
When salt stays in contact with ice, it drops the water's freezing point, which allows the ice to melt at a faster rate and prevents the water from refreezing. Salt is frequently used during winter to reduce and prevent ice formation on walkways and roads.Full Answer >
Regular Coke contains a significant amount of sugar, which makes it denser than water, so it sinks. Diet Coke, which is sugarless, is less dense than water, so it floats.Full Answer >
Salt dissolves faster in water than it does in baking soda. Salt and water have a similar polarity to water, which generally increases dissolution speed.Full Answer >
To separate sand and salt, dissolve the salt in water, decant the liquid and evaporate the water to leave salt crystals. Salt and sand is a heterogeneous mixture that can be separated by physical means.Full Answer >