# Buoyancy thicker because it fills in the spaces

Buoyancy        My science fair project is going to be about buoyancy. Buoyancy is the upward force that liquid exerts on an object. When you get into a large amount of water such as a pool, your body displaces the equal weight of water that you weigh and when the water wants to come back to its place it can’t so it pushes up against you making you float . This act confirms the Archimedes’ Law, you weigh less than the water you are in. If you were to get into the ocean it is a lot easier to float than in a pool because of the amount of salt in the water. Salt makes the water thicker because it fills in the spaces in between the water molecules, just like if you were to put marbles in to a bucket of tennis balls, they would fill in the spaces between the tennis balls.2                                      In my science experiment I am going to be using an egg to test how salt can affect a human body.3 I will be using an egg because an egg is most like a human body, it has mostly liquid on the inside with a protective shell on the outside. I will be getting a couple of eggs with the same amount of cups, I will fill the cups with tap water, then I will put an egg in each cup and put a different, recorded amount of salt in the water. Then I will proceed to record the results. I will continue to do this 3 times to ensure I have the correct results.         In my science experiment I am going to be using an egg to test how salt can affect a human body. I will be using an egg because an egg is most like a human body, it has mostly liquid on the inside with a protective shell on the outside{4}. I will be getting a couple of eggs with the same amount of cups, I will fill the cups with tap water, then I will put an egg in each cup and put a different, recorded amount of salt in the water. Then I will proceed to record the results. I will continue to do this 3 times to ensure I have the correct results.If something is negatively buoyant then it sinks to the bottom , such as an anchor,if something is positively buoyant than it floats to the top, a beach ball would be positively buoyant. If something floats in the middle of the water it is neutrally buoyant, such as some humans or fish or water molecules.interview with Schrader,picture above                   I believe that the salt will make the water thicker allowing the water to push against the egg making it float. When an object, such as an egg, is dropped into water gravity pulls it towards the Earth but if the water that is pushed out of the way for the egg to go in, weighs more than the egg, it will push against it making it float.                   If you had a boat that you put in the water, the boat would push water away so it has room but when the water gets pushed out of the way it wants to bounce back into its place, once it does this it pushes up against the boat allowing it to float.                                                                                           You could also use a beach ball for an example of buoyancy. It sits on top of the water more than a boat because it is full of air making it lighter, therefor it will sit on top because it is way lighter than the water it is in.This buoy is positively buoyant. When you have an object it will take up the amount of water that it weighs, that’s why we say if you weigh less than the water you are in you will float because the water can lift you up.                                                      I believe that Archimedes discovered buoyancy. Archimedes is a built in Syracuse A greek colony in Sicily. There is a tale that he was in his bath when the thought, and answers to buoyancy occurred to him And he got up and ran through the streets of Syracuse shouting “Eureka” i found it. Archimedes’ discovery was ignored for seventeen centuries because people didn’t believe him.1                     Shipbuilders have had the problem where they didnt know how to keep an object floating by controlling the size of its load, and its tendency to bob above the water. This happens because of pressure. Pressure is the exertion of force over an object. The deeper into the larger body of fluid one goes, the greater the pressure but it is this increased force at the bottom of the fluid that tends to push the object upward, against the force of gravity.1                 I hope you have enjoyed and learned something while reading my research paper on buoyancy.