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The greenhouse effect is the name scientists use to describe how heat accumulates in Earth's atmosphere. A majority of the energy from the Sun arrives at Earth as visible radiation. This energy passes through our atmosphere and warms Earth's surface. The warmed surface re-emits invisible infrared...
Grade Level   6 7 8
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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...
Grade Level   6 7 8
Classroom Activities Curricula and Instruction
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