posted by Nina .
My grandson is in 4th grade. His teacher assigned the class to make a container that will keep an ice cube frozen for several hours while inside. Do you have any ideas?
Well im in fifth grade and have never had to do anything like that..., but might i suggest a metal container of some sort but sealed tight with styrofoam interior and exterior?
Anonymous has the right idea.
Insulation is the key. I'd try experimenting with a stryofoam box, packed with bubble wrap or sawdust or crumpled newspapers or ??