How does ice melt with the sun and aluminum?
The ice melts because of the sun reflecton off of the aluminum.
If you put both near a fire the aluminum cup with ice would melt faster because more light energy and thermal energy would reach it when a fome cup would just sit there and absorb the heat and give little bits of heat of at different times. If you put it in the sun the aluminum cup would still burn better because it gets more sun light and lets in more heat.
Why did the ice cube directly under the light melt faster when it had no cover than when it was covered with aluminum foil?
I_think_that_ice_melts_on_wood_more_then_metal_because_wood_outside._If_it_is_outside_there_might_be_a_hot_sun._And_the_hot_sun_might_melt_the_ice._It_depends_on_the_tempurture_and_if_it_is_outside_or_inside.">I think that ice melts on wood more then metal because wood outside. If it is outside there might be a hot sun. And the hot sun might melt the ice. It depends on the tempurture and if it is outside or inside!
Pepper does not melt ice. Pepper is regarded as hot due to its spicy sensation in your mouth when consumed, but it does not have any real heat to it. If you put enough black pepper on ice in sunlight the black pepper will absorb the heat from the sun and may transfer that heat to the ice causing it to melt.
Even with the sun shining, the air was too cold for much ice to melt. Any ice that the sun's rays was able to melt could have quickly refreezed. In addition, ice reflects sunlight very well - about 80-90% of it at times. That means 80-90% of sunlight that does shine on it just bounces off back into the atmosphere. This compares to only about 20-30% over many other surfaces.