Demonstrates that black is a good heat absorber.

heat absorption, Kirchoff's Radiation Law

Useful Links: How Stuff Works provides a brief explanation of why the colour black is a good absorber.

Updated on: 06/19/13

To show that a black surface absorbs heat more readily than a bright or shiny surface.

differential thermometer, light

Even the levels of liquid in the U-tube by opening the valve. Close the valve and direct the light on both the black and shiny bulbs. The levels will change.