Take two tiles or stones, paint one black and the other white. Keep them under the Sun. After a while, touch each of them and feel the difference in their temperature. Which one felt cooler?
The white tile or stone will feel cooler than the black one.
This is because white surfaces reflect the Sun's heat, while black surfaces absorb heat.
This is why a white roof can make buildings cooler by reflecting sunlight.
Explanation
The chapter explains that a white roof can make the roof cool because it reflects the Sun's heat, while a black surface absorbs heat. This activity demonstrates the difference in heat absorption between white and black surfaces.
Solution Steps
The white tile or stone will feel cooler than the black one
White surfaces reflect the Sun's heat
Black surfaces absorb heat
White roofs make buildings cooler by reflecting sunlight