I seem to wake up at around the same time every night, 3am but I don't find it impossible to get back to sleep. I also sometimes have dreams where I'm not breathing, but I know I'm sleeping and try to...
please help, need an example of a time when something happened and you were scared for a story im writing. something that happened and was over quite quickly, but just got a massive shock. thanks :)
At very low temperatures, air becomes liquid. Liquid nitrogen is made from liquid air by a process of distillation.
Why can liquid air be separated in this way?
thanks :)...
When sodium metal is added to cold water, the metal melts to form the shape of a ball and quickly moves about the surface of the water. Hydrigen gas is rapidly produced and sodium hydroxide solution...
