why do balloons pop at high altitudes?
155251
The pressure up there is much stronger and squeezes to it POP!
495221
Barometric pressure is the measure of how dense the air around you is. It is measured in inches or millibars.  The reason for this type of measurement is that early barometers were constructed using a tube of mercury.  it was discovered that a tube containing mercury sitting in a pool of mercury varied with the air pressure.  Scientists noted that this device gave a higher reading at the bottom of a mountain where the air is more dense than at the top where there is less air pressure to support that column of mercury.( if you could keep going higher you would get to a place where there is no air to support your column of mercury.  That is outer space. Say you took an inflated balloon with you on your journey to outer space.  It would explode because there are air molecules inside the balloon pushing outward, and no air pressure outside the balloon to keep it in check. The same with your body.). The average reading at sea level is around 30 inches of mercury.  If you live in a place where there are mountains you can test this for yourself. Most barometers now days do not use mercury, but instead are operated using a spring. Take your barometer with you when you travel up a mountain.  As you get higher you will see the reading decrease. As you travel up or down a mountain, your ears might "pop".  This is due to the change in air pressure. Have you noticed the weatherman talking about areas of low preassure and areas of high presure? The barometric pressure is what they are talking about.  In general the higher the air pressure the less likely there will be a storm. In tornados and hurricanes air pressure is very low. This lower air pressure is what causes some people with arthritus to complain of their aches and pains and causes your headaches. \nSandy Claws
372306
Depends on how much helium you put into it, and how big your baloon is, and how and where you release it, and... it may well heep going up and up and up to the top of our atmosphere if you put enough in.
437723
Pressure increases as altitude increases. Also, underwater, when elevation decreases.
802914
Your puzzle is explained in part by the thermodynamic behavior of air.  \n\nWhen a 'pocket' of air is heated, its density decreases relative to the surrounding atmosphere, and so it begins to float upward.  As the hot air rises through the troposphere, the pressure around it drops, because there is less air and more available space to fill.  The volume of the hot air expands as a result, but this expansion progressively drains the heat from the air, through a process called 'adiabatic cooling.'  In the end, the air pocket is dispersed, its temperature dropping far below the air temperature at the Earth's surface.  This process happens constantly, all over the atmosphere, and is one factor contributing to the overall 'lapse rate' of the atmosphere (the rate of temperature decline as altitude increases).
33574
lol thats a funny question i think the reason they make those noises is because there are air pockets in them and when the air pocket bust it goes snap crackle pop lol
1029587
Previous answers are crap. Air pressure is less up in the mountains, so the air there is less dense. When you are at the beach, you have all of the air from the beach to the top of the atmposphere above you. This air has weight, and pushes down on you. This is the same idea as the pressure at deep parts of the ocean being very high. Because air is compressable, the air at the beach is made more dense because of the weight of the air above it. In the mountains, you have less air above you (most of the air is below you), and so the air pressure is less. This means the air is less dense, and so it is "thin".
37068
The air gets less dense, not lighter as elevation increases because there is less air on top to push down on the air beneath it you as you go up.  It would be like diving to the bottom of a swimming pool.  Whenever you go so deep, your ears start to hurt because the pressure of the water on you.  It's like that, but we're used to the pressure of the air.  \n\nTall people don't breathe easier, there isn't that much of a difference in pressure.  But actually, the higher you go, the harder it is to breathe.  There is less oxygen as you go up (that's why mountain climbers have to wear oxygen masks when climbing tall mountains like Everest!)
891931
initially only 10-29% of air is filled because the air inside is heated it naturally expands and occupies the rest of the volume when it expands the density of helium decreases and hence the baloons goes up because the density of air inside is leser then the air outside
776205
High winds travel up the roof following the contour of the roof line and a low pressure area is generated at the roof's peak. This phenomena causes the roof to lift off.
538503
Because the air is less dense the higher the altitude, there are less molecules available to retain heat. Therefore the heat of the sun dissipates more readily.
797306
Lets look at gas in a balloon.  Lets pretend we can see the gas molecules buzzing around on a micro-scale.  At the boundary of the gas and the surface there are always some of these molecules hitting the surface.  The molecules hitting the surface, much like you pushing on a surface, creates the pressure.  So, the faster the molecules are traveling (due to a rise in temperature) the harder they will impact the surface.  Also if there are more molecules present, more will be hitting the surface and also increase the pressure.  This can be verified by analyzing the ideal gas law, PV=nRT.  Where P=Pressure, n=amount of gas molecules, and T=temperature.  We can see if we raise the n or T the pressure must rise also, assuming a constant V(volume).\n\nOn a macro-scale, such as our atmosphere, the gas has a mass just like anything else.  Although the mass is small, there are miles of gas so the total mass has a noticeable affect here at the ground.  We don't notice the pressure because we are used to it (sometimes you may notice it when your ears 'pop' driving up or down a large hill) but the atmosphere is exerting pressure on everything.
1057664
Yes, the champagne or anything else such as soda pop, will lose its fizz faster at higher altitudes because the air pressure is less. The carbonation in soda is trapped CO2 molecules, which are trying to escape back into the air.  The more pressure there is on the surface of the liquid, the harder it is for the CO2 gas to escape.  When the pressure is less, it is easier to escape.
10432
The balloon is filled with hot air by the burner.  The hot air inside the balloon rises because it is lighter than cold (or cooler air).  assuming you mean't a hot air balloon.\n\nNobody is sure about helium ballons because we always suck the helium out so we can talk weird.
495810
Because they are full of air.  Buoyancy.
1003953
Well, the different between air and helium on the weight of the balloon is marginal, so you would expect little or no observable distance. \n\nBut in principle its not as simple as is being made out here. Think for a moment about what keeps a ball up and what brings it down. Its hit into the air at first, and then a combination of gravity and air resistance bring it down. \n\nIn a vacuum the trajectory would depend only on initial velocity, because kinetic energy and potential energy both depend linearly on mass (so it cancels). In air the air resistance is proportional to square of the speed and size but not mass.\n\nNow, about that kick. Does it give 1) constant energy independent of the mass of the ball, 2) constant speed to the ball independent of its mass \n\nIf 1) then the heavier ball will be slower when kicked, so will not go as far\n\nIf 2) then the distance will be the same in vacuum as above but the larger ball will have more energy and so will take longer to slow by drag - it will go further
1072715
large altitude doesn't nesaserily mean that the projectile will spen more time in the air. \nif something is thrown off of a cliff, there is a high altitude but the projectile will just go down. \nif you were at the bottom of the same cliff and threw something up with enough force so that the max hieght is the same as the cliff, this projectile will spend double the time in the air as the first projectile.