Interesting facts

I have been learning about some interesting and incredible science facts. Few I found were pretty cool like the fact that water can boil and freeze at the same exact time blows my mind. Also, when cat falls from anywhere, they always land on their feet because of physics and gravity. This blows my mind because the fact that they can say always is crazy. Lastly, you'd be better off surviving a grenade on land rather than underwater. I would assume that you'd be more safe underwater but apparently it is more dangerous.