Its just an amateur class assignment, but I want to get it right.
I put a picture but I'm using the typical box and foil and black construction paper but I was wondering...
I was going to cover the top of the box with a plastic wrap to keep the heat inside the box. If this is okay, should I use two layers? One on the very top and one inside as well? To create a sort of mock-greenhouse effect? Or would it just keep the heat from entering? I'm trying to keep heat from leaving the box, or make the box retain as much as possible, so would having two layers of plastic wrap be counterproductive, let alone one? Should I just put the can in a plastic bag or something to keep heat from leaving?
If you know, could you explain why it would work that way? I think my logic might be flawed here....something like certain waves might not get through the barrier, or the greenhouse effect thing doesn't apply here because the layers and gases involved are different or of different strengths or something....
Sorry xD Heres my illustration of it...^
Ignore 'Q2', I was going to use a film canister but I found out it had to be 150 mL of water so I'm just going to use a can (metal is a good heat conductor?), tape a thermometer to it and make a plastic bubble.