General science teachers often claim that black objects absorb all light and white objects reflect all light. To demonstrate, they may ask students to feel the difference between a locked black car and a white one parked outside on a hot day. While walking out to the parking lot to test this, one might see desiccated earthworms on a hot, whitish cement sidewalk.

Sometimes people paint a dining room dark red (which can usually be accomplished with one coat of paint). A later resident may have to apply multiple coats of white paint to undo any reddish tinge. The surface of a white car does feel cooler than a black one, but is the thickness of the white paint (along with other properties) comparable? Does anyone have  experience with the process of painting cars?

Some general science labs use Leslie Cubes, and they seem to indicate only minor thermal differences (i.e., single digit percentages) for the color (black or a white) of a cube. Cake mixes seem to recommend similar slight reductions in cooking temperature when using black baking pans (as oppsed to shiny ones). How much of a temperature difference is there for a person sitting in a black  or a white car, a black- or white-shingled house.

Does loose black clothing in hot climates really produce noticeable cooling air currents?