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 t... More »

To make an object float, find a sealed container, attach the container to the object, and place the object in a fluid. Objects float when they are positively buoyant, or less dense than the fluid in which they are sittin... More »

www.reference.com Science Physics

To levitate small objects, such as a pencil, a playing card or a coin, attach one end of a piece of thread to the top of the object, attach the other end to a button on your clothing, and tighten the thread that is attac... More »

www.reference.com Hobbies & Games

Sugar water freezes faster than salt water, because salt has more molecules than sugar. Normally, water freezes at 32°F, however, when a substance is added to the water, it lowers its freezing point. This is not because ... More »

The reason salt increases the density of water is that the mass of the resulting saltwater solution increases, while the volume is unaffected. The density of a substance is given as the mass (m) per its volume (V). The e... More »

A list of homogeneous mixtures is any list of chemical mixtures that are the same throughout such as water, alcohol, cologne, oil, gelatin, steel, gunpowder, coffee and even salt water. Homogeneous mixtures are identifia... More »

Fresh water holds heat longer than salt water, because the addition of salt lowers the heat capacity of the solution relative to pure water. The lower heat capacity means that salt water both heats up and cools down more... More »