if i watered a plant with cold water would it grow faster than if I watered it with warm water or hot water?
109912
The plant will want water that causes it to work the least.\nI'd say, then, that lukewarm (room temp.) is best.\nCold water must be warmed up, and hot water (damaging the plant, burning the roots...bad) must be cooled down.
929239
because hot water has more energy than cold, giving the molecules more energy to move(melt)faster\n\n (i am trying to get to level 2 best answerer would help)
201719
(m)\n\nHot water does not freeze - cold water does.\n\nHot water cools faster than cold water because they both follow approximately the rate equation delta T = -k*dT/dt.\n\nAfter washing the stained clothes in both hot and cold water, we determined that cold water removed most of the stains more efficiently.  Cold water removed all of the stains that hot water did not, with the exception of grape juice and mustard.  Neither hot nor cold water removed oil or grass stains efficiently.  It different detergents and/or stain removal substances, such as Shout, were applied to the grass and oil stains, they would more than likely be able to be removed.  Since oil needs heat to dissolve, it would probably be effectively removed with the proper stain removers in hot water.  We decided that not just hot or cold water can specifically be used to remove all types of stains all the time.  Each stain must be treated accordingly using the right detergent and the right water temperature.  \n\n \n\nAlthough hot water is needed to remove some stains, it also tends to fade the color of materials.  If there are no stains in clothes, it is more efficient to use cold water because you are saving energy by not needing water to be heated.  If clothes need to be washed in warm or hot water, you can save energy but washing big loads of laundry at once and rinsing them on a different, cooler cycle.    \n\n\nCold water pressure washers are most suitable for car, deck, grill, patio, sidewalk, house, bus, and truck power cleaning. Also, if you have a car washing or an airplane washing business cold water power washers are the best fitting machines for it.\n\nOn the other hand, hot water pressure washers are excellent for oil, grease, and fuel spills, and for sanitization. Hot water pressure washers are also the best candidates for places such as garages, industrial plants, agriculture machineries, service areas, food processing plants, and airport environments.\n\nCold (40 - 50 degrees F) water is absorbed more quickly from the stomach. Also, if cold water is drank during physical exercise has the dual effect of also cooling the internal body temperature along with sweat produced by exercise. Since sweat is your body’s way of cooling itself, leave sweat on your skin and you should feel cooler.
662480
The one that heats up faster AND to higher temperatures is soil.\n\nWater can not gain or lose heat as quickly as soil due to latent heat. Water absorbs heat until it reaches the next phase change (vaporization) in which the water changes state.
434026
If you place a glass of hot water in an ice box it will actually freeze faster than a glass of cold water. \n The reason is that the temperature difference makes the water circulate in the warm glass transfering the heat loss evenly through the contents, in cold water the outside freezes first which insulates the inside from heat transfer keeping the center liquid.\n Try it, you'll see.
714260
only if you put the hot water in a colder system than what you put the cold water into
1007111
Water distributes heat much faster than air can, thus, if your are warmer, it will absorb your body heat.
213133
The cooler water will freeze faster.  The hotter water is the faster the molecules in it are moving and the more energy there is in the water.  Before water can freeze it needs to lose this energy.  Therefore the more energy it needs to lose the longer it takes to cool and the longer it takes to freeze.\n\nThe belief the boiling water freezes faster than cooler water is a popular misconception.\n\nHowever, it is true to say that boiling water (100 degrees C) will freeze slightly faster then almost boiling water (95 degrees c) but that's because considerably more of the boiling wtare will evaporate than the nearly boiling water and therefore there's less water remaining.\n\nThis probably explains why cyanne2ak is able to freak people out by throwing hot coffee at them - in very cold temps theere will be very rapid evapouration and as such far less of the coffee that leaves the cup will land on the 'victim' then would be the case with tap water.
841552
Some water is essential for all plant growth, though necessary amounts vary for individual species. Too little water will cause the plant to wither and die, and too much water will waterlog the roots and rot them, killing the plant.
316880
a topic could be does sodium floride grow plants faster or spring water ( note that sodium floride is found in tooth paste and in tap water)
638380
Heat will always travel from the warmer to the cooler. For example, an ice cube might be 32 degrees. If it is sitting in a room with an air temperature of 70 degrees, the heat in the air will travel into an ice cube until it melts completely. Once it melts, the water it was made of will continue to absorb the heat in the air until it is the same temperature as the air. The same occurs with oil in an engine, or any other object. Some things absorb or lose heat faster than others, and the more of a temperature difference there is, the faster the heat travels from the warmer object to the surrounding air, water, or whatever. An ice cube will melt much faster in boiling water than it will in cold water. Water will also freeze faster the colder the freezer is. I have proven this a number of times by putting room-temperature water bottles in various freezers. Some freeze in less than an hour, some freeze in several hours, depending on the freezer's temperature. Here's a conversion for Celsius and Fahrenheit.\n\nConvert Fahrenheit to Celsius F=1.8(C)+32\n\nConvert Celsius to Fahrenheit C=(F-32)/1.8 \n\nTo answer your other question, it has nothing to do with how many degrees per gallon of water in order to freeze it. What is important is that the air temperature is below freezing. The farther below freezing the air is, the faster the water will freeze. The more water there is, the longer it will take to freeze. The warmer the water is, the longer it will take to freeze. There are several variables. The volume of water, the temperature of the water, and the temperature of the air. It is the same for motor oil, or any other liquid. The rate of heat transfer is different for everything.
1056481
morning.  because water + sun = food (for plants) water them int he morning
36049
In hot water, it expands because the air molecule inside it move faster and it may pop. In cold water, it shrinks because the particles move slower. If u move it quickly from hot to cold water or vice-versa, it may pop too because of the severe change in temperature.
739180
Warm water is absorbed easier into the body.  Cold water takes longer to absorb, therefore burning more calories.
335460
. Yes -- here is a general explanation for all you non-belivers.\n\nHot water can in fact freeze faster than cold water for a wide range of experimental conditions.  This phenomenon is extremely counter- intuitive, and surprising even to most scientists, but it is in fact real.  It has been seen and studied in numerous experiments.  While this phenomenon has been known for centuries, and was described by Aristotle, Bacon, and Descartes [1-3], it was not introduced to the modern scientific community until 1969, by a Tanzanian high school student named Mpemba.  Both the early scientific history of this effect, and the story of Mpemba's rediscovery of it, are interesting in their own right -- Mpemba's story in particular provides a dramatic parable against making snap judgements about what is impossible.  This is described separately below.\n\nThe phenomenon that hot water may freeze faster than cold is often called the Mpemba effect.  Because, no doubt, most readers are extremely skeptical at this point, we should begin by stating precisely what we mean by the Mpemba effect.  We start with two containers of water, which are identical in shape, and which hold identical amounts of water.  The only difference between the two is that the water in one is at a higher (uniform) temperature than the water in the other.  Now we cool both containers, using the exact same cooling process for each container.  Under some conditions the initially warmer water will freeze first.  If this occurs, we have seen the Mpemba effect.  Of course, the initially warmer water will not freeze before the initially cooler water for all initial conditions.  If the hot water starts at 99.9° C, and the cold water at 0.01° C, then clearly under those circumstances, the initially cooler water will freeze first.  However, under some conditions the initially warmer water will freeze first -- if that happens, you have seen the Mpemba effect.  But you will not see the Mpemba effect for just any initial temperatures, container shapes, or cooling conditions.\n\nThis seems impossible, right? Many sharp readers may have already come up with a common proof that the Mpemba effect is impossible.  The proof usually goes something like this.  Say that the initially cooler water starts at 30° C and takes 10 minutes to freeze, while the initially warmer water starts out at 70° C.  Now the initially warmer water has to spend some time cooling to get to get down to 30° C, and after that, it's going to take 10 more minutes to freeze.  So since the initially warmer water has to do everything that the initially cooler water has to do, plus a little more, it will take at least a little longer, right? What can be wrong with this proof?\n\nWhat's wrong with this proof is that it implicitly assumes that the water is characterized solely by a single number -- the average temperature.  But if other factors besides the average temperature are important, then when the initially warmer water has cooled to an average temperature of 30° C, it may look very different than the initially cooler water (at a uniform 30° C) did at the start.  Why? Because the water may have changed when it cooled down from a uniform 70° C to an average 30° C.  It could have less mass, less dissolved gas, or convection currents producing a non-uniform temperature distribution.  Or it could have changed the environment around the container in the refrigerator.  All four of these changes are conceivably important, and each will be considered separately below.  So the impossibility proof given above doesn't work.  And in fact the Mpemba effect has been observed in a number of controlled experiments [5,7-14]\n\nIt is still not known exactly why this happens.  A number of possible explanations for the effect have been proposed, but so far the experiments do not show clearly which, if any, of the proposed mechanisms is the most important one.  While you will often hear confident claims that X
363855
It is possible that the color of the water absorbed by the plant could tint the leaves darker than the leaves would be if the plant absorbed clear, colorless water.  This might effect the growth rate.\n\nAlso, the color of the water could be due to a chemical that affects growth rate, so in this case, yes the rate could be affected.
111339
I would probably do it by making a chart.\n\nYou should have atleast two plants (one control and one that was watered with vinegar), or for a good experiment, you should have more than two plants, one control and several other plants watered with differnt concentrations of vinegar.\nI would make a chart [and/or graph] of the growth progress of each of the plants by day/week/... based on what concentration of vinegar each was watered with.