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It doesn't... always! First of all, water will only remain flat when it is completely undisturbed. In a lake or the ocean, the wind creates waves on the surface. In a river, the water is flowing downhill, and the surface of the water is certainly not flat.
However, generally we think of water as being flat. That's not really true either. The oceans are certainly not flat -- they are curved! The oceans are on the surface of the Earth, which is a very big sphere. So while the ocean looks flat to us, it is simply because we don't have enough perspective to see that they are curved... but they are! Think about a globe and you can easily see that the oceans are very curved.
However, all this aside, if you have a glass of water, and let it sit undisturbed, the water level is flat. This is because the pull of gravity is equal across the face of the water. The water molecules are free to move throughout the liquid, and the gravity affects each water molecule equally, pulling them all down the same. That is why the water level stays flat in a glass.
The reason the oceans are curved is in fact the same reason. The pull of gravity can be approximated as coming from the center of the Earth. So if you are on one side of the Earth, the pull of gravity is in exactly the opposite direction as if you were on the other side (some people like to think of Australians as being upside down, which is of course ridiculous, but that's that same idea). Because gravity is pulling the water molecules equally towards the center of the Earth, the surface of the water is the surface of a sphere, which is of course, curved.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoThis is because the pull of gravity is equal across the face of the water. The water molecules are free to move throughout the liquid, and the gravity affects each water molecule equally, pulling them all down to the same level.
Wiki User
∙ 11y agoSome liquids are heavier than each other so they sink to the bottom, some liquids are lighter so they float to the top.
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Do organisms always stay in the same level explain the answer?
No, because even though humans are placed on a lower tropic level than lions, sharks, wolves, etc. they still eat organisms like those. Humans eat shark and other meat from organisms higher than them on the tropic level pyramid.
What makes the wind blow by the water but not on land some days?
There is nothing to block the wind by water but on land there are trees to block the wind so it is always windier where? The water. It is always colder by the water too. Even in the summer. You jump in the water, you feel good. You stay on land. You're sweating through your shirt!
A piece of ice is dropped in a beaker containing kerosene when ice melts level of kerosene will?
As kerosene is less dense than water so level of kerosene will fall
What is the function of a squids pen?
to help the squid stay up straight
Why does water seek to get to a lower level?
Yes. Take a short piece of clear hose and fill it with water. Lift one end higher than the other and watch the water level in the hose. It will stay the same on both sides.
Is water in a tilted glass always level?
Yes. It is true that water in a glass is always level relative to the ground (I mean horizontal). This is because the pull of gravity is equal across the face of the water. The water molecules are free to move throughout the liquid, and the gravity affects each water molecule equally, pulling them all down to the same level.
Why does the water level in a toilet stay the same after urination?
The toilet did not add water yet. By the way, If you filled a bucket with water, The water level would go up.
What is the Yiddish word for stay straight or stand straight?
The Yiddish word for "stay straight" or "stand straight" is "steyben" (שטייבן).
How could you increase your jump in volleyball?
Here are some things that I have learned: Do not have both hands in the air Always stay in ready position and do not stay straight and bend your knees when you do it.
Does a great white dorsal fin always stay upright?
A great white dorsal fin does always stay upright in the water. The fin is what helps the shark swim.
Why doesn't fat absorb water?
Fats are hydrophobic, meaning they are "scared of water." they will not mix with water, they will always stay separate.
What happens to the level of molecules as water cools?
Nothing they stay the same - their density changes.
Does the CN tower bend like a tree or stay up straight in strong winds?
stay straight
What is a straight person?
Straight is a slang term with multiple meanings. It can mean that they are heterosexual; they do not do drugs or alcohol, or that they are someone that tends to always follow the rules. Does Todd date other guys? No, he is straight.Hey Joe, want to smoke a blunt with me? No, I've been straight for over a year now.Did Jenny stay out late with that guy she met? No, she is always so straight.
Why is your ball python always in the water?
Ball pythons stay in the water when they shed so that they can loosen their skin. However, if your ball python is always in the water, a trip to the vet might be a good idea.
Why will your hair not stay straight?
Because some peoples hair is not naturally straight. You have to have a hair straightener to make it stay straight, if you get it wet it will go frizzy
Does your hair stay straight after you get it permanently straightened Even if you go in the shower or swimming pool etc?
corse not lool they is no such thing as gettin it perminatley straight cuz it will always go curly after a day or two
