ERN Item Type:
- Classroom Activities
Heat islands result when people alter their surroundings, substituting man-made asphalt roads, tar roofs, and other features for vegetation. Trees and other plants provide shade and cool the air through evapotranspiration. Hard, dark surfaces like pavement store heat during the day. That heat is then released at night, keeping cities warmer longer than surrounding areas with a lot of vegetation. In this activity, you will relate changes in sunlight to the air temperature above the surface that you are testing.