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The water bubbles up because of cohesion.
Cohesion: the force of attraction that holds together a substance's molecules; cohesion is strongest in solids, weaker in liquids, and weakest in gases.
The water doesn't spread out evenly all over the penny because the H2O molecules are so strongly attracted to each other (opposites attract, so yeah, hydrogen is pos. and oxygen is neg, so one H2O molecule is attracted to another one, either through the hydrogen molecules or the oxygen molecules) that it forms a bead because they're all grouping up together.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agopennies dont float in water
I have heard that it is possible to float a penny, due to surface tension, but I have never seen it done, nor have I been able to do it. I have floated razor blades, though.
Wiki User
∙ 12y agoWater molecules are polar, meaning that they have a partial negative charge at one end and a partial positive charge at the other. This causes them to cling to each other in a way similar to magnets. This causes water to form fairly round droplets.
Wiki User
∙ 11y agoSurface tension keeps the water molecules together, thus preventing them from just spreading out and falling off of the coin.
If you keep adding water droplets, the mass of the "bubble" will increase. Eventually gravity will overtake the surface tension and the water will spill over the edges of the coin.
Wiki User
∙ 13y agoSurface tension. Water molecules are held to one another by strong hydrogen bonds caused by the uneven sharing of electrons between the oxygen and hydrogen components.
Wiki User
∙ 13y agoThat is due to the property of cohesion - a substance's ability to stick to itself. Water is very cohesive, so when one part of a droplet moves, so does the rest.
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Can you make a penny float?
Put it on a boat?
Will a marker float or sink in water?
I have a marker which float in water.
Does an egg float in salted water?
Yes it does float in salt water.
What are the results of can water float on water?
The results of can water float on water is that the water builds a ocean.
What vegetables float in water?
All vegetables float in water
How can a penny float?
A penny will not float in water, mainly because it is denser than water. When the penny is placed in water, it displaces a volume of water equal to its own volume. Since the penny weighs more than the water it displaces, it will sink.So, in order for the penny to float, you must find a liquid that is denser than solid copper -- or whatever metal or alloy a penny is made of. Mercury -- which is a liquid at room temperature -- is denser than copper. Hence, a penny will float in mercury.Possibly surface tension may allow it to float.
Why does a boat float in salt water but not a penny?
penny's aren't tall enough!
Why doesn't a penny float in the water?
because you're fat
Why will a penny float in cooking oil?
it will float bc the penny is so light that it should float.
Why would a golf ball float on water and not a penny?
Only special bought golf balls float, and they are designed with air inside. That air obviously is lighter than water and will always rise, a penny however has no air and is stream lined to slide through the water. :D
How do you make a penny float?
the way to make a penny float is the same way as making an egg float.All you have to do is add salt alot until you see the penny float and that's about it
Can a hockey puck float on water?
No, because a hockey puck has a higher density than water. In some cases, objects with higher density than water can still float on the water, if they are small enough to avoid breaking the surface tension of the water. This is also the case if the object's mass is distributed across a large enough area, so you could float a penny on water if you put it down flat across the water, but it would not float if you dropped it in on its side. You also could not float that penny if you melted it down and made it into a sphere, for example.
Can a penny float in salt water?
A penny as everyone I'm sure knows cannot float in regular water. As for salt water a penny should in theory not be able to becase the regular pennys bouancy is not great enough to support the weight of the penny regardless of the salt to water ratio. A penny is too dense to be able to float in salt water, regardless of the salinity of the solution.
Can you make a penny float?
Put it on a boat?
How does an air craft carrier float in fresh water when a penny sinks in fresh water?
aboat floats because it displaces it,s weight in water when that happens it stops sinking a penny cannot displace it,s weight in water so it sinks hope you understand
Why does a penny sink in water?
water has a density of 1. For something to float, the density of the object would have to be under 1, and to sink, it must be over 1. If it is exactly 1, then the object will remain suspended in the water. A penny has a density of over 1, so it sinks in water.
Would a penny sink or float in water?
When an object of volume V is submerged in a liquid, the object experiences an upward force equal to the weight of the fluid it has displaced (the weight of a volume V of fluid). Oil is less dense than water (the oil floating on the surface of the Gulf of Mexico after the Deep Horizon catastrophe is an example of this), so a given volume of oil weighs less than the same volume of water. This means that a penny of volume V submerged in oil feels the weight of gravity pushing it down, and the weight of a volume V of oil pushing it up. The upward weight pushing the penny up is less in oil than in water, so the penny will sink faster in water, theoretically.
