How warm should water be for it to be safe for kids to swim in?
108830
i think water even in the upper 60s is safe. did it all of the time as a kid. feels cold but you get used to it and its not so cold as to make you sick.
513212
they should learn how to swim as soon as possible, my coach's baby learned how to swim before he was able to walk!  \n\nbut that's learning how to swim, actually swimming as a sport ( competing .. ) you should wait until 5 or 6 and follow a very recreational type of practice, its not very good to overtrain kids at that age, it could hurt their growth, and development in the sport.. \n\nswimming should help the kid with coordination, strength and metabolism, so its very good
644477
You CAN sweat while swimming.  It depends how much you exert yourself, how warm the water is, and how prone ou are to sweating.
373532
you have your water temperature at between 37degrees and 39degrees buy yourself a thermometre to place in the water to check before you get in ok
635448
For Fastest Speed, Hot water\nFor safer method, cold water
411917
If the air and water are warm, less is better (shorts, shirt, shoes, hat and sunblock).  If it's not, then you will need something waterproof to keep you warm (splash top and bottom, or maybe a wet suit) worn over some warmer clothes.  Synthetics are better than cotton in both cases.  They dry faster and that keeps you warmer, too.\n\nAn old pair of tennis shoes is usually a good choice, with a pair of neoprene socks if it's colder.  Lots of people like to wear sandals on the river, but you have a much better chance of smashing a toe on the rocks and your feet are less protected.\n\nOf course, always (ALWAYS!!!) wear a life jacket. No matter what type of river you're on.\n\nIf you're going on an extended (multi-day) trip, there is a great gear list on this web site: www.restwhenyoudie.com.  Just go into the rafting section, go to Middle Fork Salmon, click on Middle Fork Support, and click on "gear list" at the bottom.
513793
In Sunny England the water T is around 13-14 C and it is a bit cold but of course you can swim in it (unless your a girl). \n\nWith cold water immersion you get two things, first is cold water shock where basically you will have a heart failure as your body receptors go mental due to the drastic change in outer shell temperature. If this doesnt kill you (and this will be within a minute) then all you have to worry about is hypothermia. Water at 25 C is fine, you can stay in it forever provideed there are no other cooling factors such as current or surface wind or your little peanut head. As the water gets cooler, obviously your chances of hypothermia increase and your limbs pack up and fail to work. Also the most important thing is your brain cools and fails to function properly so decisions and realisations become harder to make and its likely you will black out. So its worth bearing in mind that you may be in the cold water and swimming around happily, but the cold will creep in and stop you being able to physically swim as well as knocking you out.\n\nIn our local 13- 14 C water, 30 minutes of moving swimming is more than enough, I come out pink and hard though. OOer.
971595
remember a microwave heats the water molecules directly.  So it doesn't get much hotter than 100ºC as long as there's liquid water around.
1000245
Try this website--it is kid friendly--and mom too!!\n\nwww.chem4kids.com\n\n\nThis should take you right to a page about water\nhttp://www.chem4kids.com/files/elements/008_comps.html .
136691
I have never heard of this and had 3 kids.\nI would not use the hot tub but a regular bath tub or swimming pool. there should be no problem. if you are that worried ask your dr.
1011451
well hopefully the water is warm... so just keep swimming\n\noutside of the pool get yoursefl a parka, and some of those Ogs.. very popular amongst girls college swimmers these years\n\nI swam for 3 years outside and had morning workout at 5:30, sometimes it would get to be 32 outside and we would still swim.. the trick was running out of the locker as fast as you could took your parka off and jumped in
117878
The depth of water also has effect. The shallower the water the warmer. The deeper the colder. So water in the tropics, near the equator and shallow should be warmest.\nSee the link below.
786093
Living in a warmer climate,  they are probably better swimmers.
115707
It depends on the pressure and temperature of the water so the previous answer is limited to only one condition.
995490
i would for a pool, it's hot.
312227
Any bacteria or viruses die and hot temperatures and mot hot tubs are kept at 104 degrees.  I think that is pretty hot.
94072
It depends on how hot you want your water. If you want only moderately heated water, suitable for bathing, you can use a box covered with glass that has a long winding pipe inside it. The pipe should be a small diameter and laid out flat on the bottom of the box with as many turns in it as possible to increas the length. This can go into a reservoir, like a hot water tank, and to make it more sophisticated you can put a circulating pump on the tank that constantly circulates the water through the heating panel. This is how commercial solar water heaters are made, with some sophisticated controls added. \n\nIf you want to boil your water using solar power this can be done with a parabolic mirror that focuses sunlight onto your cooking pot. These can be made from small pieces of mirror laid in a parabolic form (shaped like a satelitte dish) and cemented with plain grout. I have seen these used in some areas and they are quite effective. \n\nOne simple method that I use when camping: Lay a black colored bag of water on the ground or hang it in the sun and wait till it is warm enough for a shower.