a transparent ball filled with colored H2O changes levels according to barometric pressure change- How do fill
449240
Atmospheric pressure will support a column of air about 10 metres high.   The exact height varies from day to day depending on atmospheric pressure; high and low pressure systems.   To start with, partly fill your container with coloured water, with the hole at the bottom submerged in more coloured water.   If there was no air in your transparent ball, it would need to be 10 metres in diameterfor you to see a boundary between the empty space at the top and the water column supported by the atmosphere pushing down on the liquid outside, but because you've trapped some air inside, this air pushes down on the water so the water isn't as high.
58327
Pressure goes up as temperature goes up.
608403
NaOH (aq) + HCl (aq) --> NaCl (aq) + H2O (l)
581432
atmospheric pressure, winds, light
604015
The amount of material and the prevalent temperature haven't changed much, so the pressure and volume are inversely proportional.  As the external pressure on the balloon decreases, the amount of material in the balloon will expand to equalize that pressure.
552084
I assume this is based on the principle of Osmosis. I would like a bit more data before answering further.
458303
from the humidity  in the  air
569120
Isobars link locations with constant pressure, isotherms do the same for temperature
821351
The water evaporates from the head (Maxwell-Boltzmann distribution)\nEvaporation lowers the temperature of the glass head (heat of vaporization) \nThe temperature drop causes some of the dichloromethane vapor in the head to condense \nThe lower temperature and condensation together cause the pressure to drop in the head (ideal gas law) \nThe pressure differential between the head and base causes the liquid to be pushed up from the base. \nAs liquid flows into the head, the bird becomes top heavy and tips over during its oscillations. \nWhen the bird tips over, the bottom end of the neck tube rises above the surface of the liquid. \nA bubble of vapor rises up the tube through this gap, displacing liquid as it goes \nLiquid flows back to the bottom bulb, and vapor pressure equalizes between the top and bottom bulbs \nThe weight of the liquid in the bottom bulb restores the bird to its vertical position
89345
PV=nRT. Standard equation of thermodynamics\n\nPressure * Volumn = constat * Temperator.\n\nA dessicant will remove water from the air, therefore decreases Pressure.  In order for the equation to balance, Temperature will decrease.
971090
A soap bubble falls to the bottom of an open tank filled with air. When the same tank is filled with gaseous carbon dioxide, a similar bubble floats.\n\nCabbage juice is placed in a large flask. Vinegar is added to the point of color change. Aqueous ammonia is then added to the point of color change. Vinegar is then added again to show the reversibility of the color change.
897109
atmospheric pressure decreases as altitude increases.\n(think about gravity)\n\nan object that floats is less dense than the fluid it floats in.\n"A piece of the object weighs less than a piece of the fluid the same size."
507971
With a pressure gauge.
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
162268
The density of the fluid and the density of the object.
93225
The gas is under pressure, so when you press the nozzel the liquid ....mmmmmm better a picture than words..\n\n http://www.aerosol.com/
367774
Water is denser than air (or sunlight).