ok so we have to build a solar receptor kind of thing that will get warm and stay warm in the sun(learining about solar power) it can be made of anything but glass or metal (aluminum foil alowed) I'd like it to be made of mostly stuff i can find around the house or easy to find at storesand it can't be too big( able to fit in a larger locker.)ANY IDEAS??
Use a cardboard boxCover it with aluminum foil and then paint it black (cover and paint it outer and inner side both.) Cover its open face with a transparent thick plastic sheet(thick polythene can also be used) You have the choice to select the size of your box according to your locker sizeCardboard box will be foo because it will not let heat inside it escape easily as it is a heat insulator.
You might be talking of silver-leaf; which is simply flattened silver that adheres to almost anything you press it onGold-leaf is much better known and acts the same way.
Reflective Mylar Sheets Mylar is often used to generically refer to polyester film or plastic sheet.
