1
Learn about the role of greenhouse gases in climate change with resources from the NLM's Environmental Health Student Portal. The greenhouse gases web page provides basic information for middle level students about greenhouse gases and the human activities that increase them, links to news articles...
Grade Level   6 7 8
Classroom Activities Curricula and Instruction
Save to List
2
Current consumption of fossil fuel releases more than 25 billion tons of CO2 into the atmosphere every year. If current trends continue, there will be a tripling of atmospheric CO2 by the end of the century—levels not seen for more than 40 million years. By measuring our carbon footprint, we can...
Grade Level   4 5 6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List
3
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
Classroom Activities Curricula and Instruction
Save to List
4
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
Save to List