liquid nitrogen
Insulate it as much as possible from heat sources, the more layers of insulating material used the better. I think the more layers of insulation and a contaor it could probley work.
Helium, which literally does not freeze at normal atmospheric pressures, even at absolute zero.
freezing temperatures and conditions
You could keep it in a freezer.
Move the ice into a freezer.
i think what would preserve the ice block from melting is to try and just try different things in order to keep the ice from melting like maybe putting the ice in the deep freezer where it can stay frozen for a couple of days.
could be the ice inside it melting
Leave it in the freezer.
Put salt on it.
Put it in the freezer .
probably if you keep it in the freezer
You could keep it in a freezer.
You could keep it in a freezer.
Forever if you leave them in the freezer! But it melts in hours.
Yo keep it in the freezer or if it's a sunny day or warm. Keep it in a cooler
a freezer outside (only if it is below 0)
Move the ice into a freezer.
keep it in the cooler
Put it in the freezer forever, Or until you want to lick it. I got this answer from a book. It is real.
Obviously putting it in the freezer will keep it from melting. Other good insulators are: - Styrofoam - Bubble wrap - Copper