Why does newspaper keep hot things hot

Like the felt, the thickness of the newspaper will serve to keep the warm air out and the cold air in, so the ice cube will be able to last for a little while. The same vacuum that keeps hot things hot keeps cold things cold. Paper is both good insulator in terms of electricity high electrical resistance and in terms of heat good thermal insulator.

If you want your child to have a hot lunch you are better off getting a school lunch for your child or a thermos bottle that will keep things like soups hot. In the classroom food storage is hard. Many teachers now have refrigerators in the room I did and keep student lunches in it for the morning, but to keep something hot is very hard. Hot cake gives off steam. Wrapping the cake while it is still hot will trap in the steam, which will then seep back into the cake.

This will lead to a damp and soggy cake, which no one wants. Also, a cake tends to be larger heat makes things expand , so letting it cool means that it can shrink to it's normal size, so then wrapping it will be done properly. Bad conductors keep things warm or cold, so the answer is, because cloth is a bad conductor of heat! Wrapping an object in aluminum foil reduces the energy loss through infra-red radiation.

Foil reflects radiatant energy in the same way that a mirror reflects light. This is very effective in keeping food hot after it has been cooked. It is always important to keep things clean with hot water and soap. You can put hot things in the refrigerator. But the main job of the refrigeratoris to "refrigerate" Sothe hot thing that you put in there won't stay hot, unless it's in an insulatedcontainer.

Otherwise, it'll turn into a cold thing. Log in. Newspapers and Magazines. See Answer. Best Answer. Because it works as an insulator -Sources: Science Class. Study guides. Q: Why do newspaper wrapping keep things hot? Write your answer Related questions. Why does newspaper keep hot things hot and cold things cold? Why wrapping something in layers of newspaper keep fish and chips hot and ice cream cold?

How does a tema keep hot things hot and cold things cold? Does a thermos keep things hot? How does a snake keep warm? Why was the thermos invented? As it rises, the air needs to fill up down to the floor to keep the room warm, which takes a lot of time.

However, it's beneficial in the summer, since the cold air goes down. Answers to Chapter 31 Questions Explain why newspaper wrapping keeps hot things hot, e. Woods are good insulator. Good insulators can delay the transfer of heat, which is the reason newspaper can keep hot things hot. In between the papers, there is air, which air is a bad conductor, that means that air is good insulator.

Wool which is a bad conductor, is a good insulator. It traps air and air is one of the best insulators. That is the reason why wearing fur coats inside out makes the owner feel warm.