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~*~ Sir Arthur Currie ~*~
~*~What Does Density Have To Do With Buoyancy~*~


It's pretty obvious that water can hold up water. This obvious fact is exactly how floating works: if something is heavier than water, it sinks, if it is lighter than water, it floats to the top.
 If you weigh a cup of water, and then weigh a cup of salty water, it turns out that a cup of salty water is heavier (denser). The more salt you dissolve, the heavier is the cup of salty water.
Salty water can obviously hold up salty water, that is it can hold up heavier stuff than plain water can.

     Because the Dead Sea is much saltier than most of the world's oceans, and we are made mostly of water you can float in the
Dead Sea without even trying.

     In order for you to float, the water that moves out of the way to make room for you. Since you are lighter (less dense) than water, the water pushes you up enough for you to float.

     The Dead Sea has a lot of salt and other minerals in it. Salt water is heavier (denser) than regular water. People can float in regular water, but since salt water is even denser, it is even easier to float in the Dead Sea.



  Its easy to float in water, but because of this, its even easier to float in the Dead Sea.  In fact, this makes it rather difficult to swim and (especially) dive in the water.  Most pictures of people in the sea show them reading a newspaper, throwing a ball around or just relaxing.
Density is the amount of stuff or matter in a certain space. You may have noticed that a book is allot lighter than a rock that is the same size.  That's because the rock has more matter in the same space.

Buoyancy is how well something will float. In order for something to float, its density has to be less than whatever it is floating in.