Once they are inside the vagina there is only one thing she can do and that is to take the morning after pill. If it's on your hand wash it off or it will die when dry. Someone wrote urine kills sperm and that is a myth.
Water kills sperm by drowning them-
Not exactly- sperm live in fluid (called semen) so they can't really 'drown' in water.
But, water does not contain the nutrients and salts that the semen contains, so when the sperm cells hit a diluted hypotonic solution such as water, they can swell up, burst and die.
That depends on how hot the water is. As a rule - no. Having a hot shower after sex does not automatically stop you from becoming pregnant.
A girl can become pregnant without the male actually ejaculating inside of her during intercourse, this is why it is important to use contraceptives if you don't want babies. Condomes being one of the better as they are the only contraceptive that prevents sexually transmitted infections as well.
Colder temp. Affects them more because the testies have to be warm to keep the sperm alive.
Warm water does not help sperm. If it is cool enough it will have no effect, but if it is warm enough it can damage the sperm in the testicles. Sperm are pretty sensitive to increased temperatures, and this is why they reside in the scrotum. The job of the scrotum is to keep the testicles a few degrees cooler than the rest of the body.
Use warm, soapy water (or shampoo).
Yes, but it is better to use soap and warm water
If the water is only warm, quite a while because sperm prefer an alkaline[soap] environment.
doubtable, because heat kills the "swimmers" in the sperm. It is noted mean shouldn't wear regular briefs because the heat against the testicles can greatly reduce their sperm count. If he touched the warm water with it, then fingered you the heat more than likely killed the impregnating swimmers.
Not in my experience! It's very sticky. Even with warm water and soap, it can take a really good latering to get it off the skin. I can't comment on it's potency after watering it down with cold or warm water; just the clean up effort. Yes, soap and water will rinse it away. Water alone will also do the job. I hope you're asking about sperm on your skin and not inside of you - because water will not wash enough sperm out of you to be effective.
Sperm whales -like all whales - are warm blooded
Generally, no. Germs are best killed by very warm or hot water.
No, it will not. The sperm are housed outside of the body because it is too warm inside. If it becomes too warm, the sperm will die. If it is way too cold, it will die as well.
Sperm can be killed by spermicidal agents, such as nonoxynol-9.
Yes. Chlorine kills all bugs including sperm. Hello. Chlorine in a swimming pool will not kill sperm. Spermicidal jelly or condoms will kill sperm. Sperm dies naturally a few hours after coming into contact with air. Sperm can live for up to 5 days inside a womans body. Yes, it will. But, if he comes directly inside you it won't kill them before they can get to the safe area inside your uterus. If he comes into the water instead you are safe though.
Sperm Whales!