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The wet sidewalk was heated from the sun heating the ground, then reradiating it back into the atmosphere. the heat in the ground warmed the sidewalk, then the water started evaporating into the atmosphere once it kept getting warmer and warmer.
Pretty good..a 3/4. Discuss the energy transfers that take place and how the molecules are reacting.
When the suns rays go through radiation to the earth, then the molecules in the earth start moving faster because they just go energy. the earth's energy conducts into the cement, which warms the water on the cement. the water then evaporates into the air.