Scientific Inquiry renewed
 

Earth Systems Grade Level Content Expectations


Earth Systems E2.1A Explain why the Earth is essentially a closed system in terms of matter.
Earth Systems E2.1B Analyze the interactions between the major systems (geosphere, atmosphere, hydrosphere, biosphere) that make up the Earth.
Earth Systems E2.1C Explain, using specific examples, how a change in one system affects other Earth systems.
Earth Systems E2.2A Describe the Earth’s principal sources of internal and external energy (e.g., radioactive decay, gravity, solar energy).
Earth Systems E2.2B Identify differences in the origin and use of renewable (e.g., solar, wind, water, biomass) and nonrenewable (e.g., fossil fuels, nuclear [U-235]) sources of energy.
Earth Systems E2.2C Describe natural processes in which heat transfer in the Earth occurs by conduction, convection, and radiation.
Earth Systems E2.2D Identify the main sources of energy to the climate system.
Earth Systems E2.2e Explain how energy changes form through Earth systems.
Earth Systems E2.2f Explain how elements exist in different compounds and states as they move from one reservoir to another.
Earth Systems E2.3A Explain how carbon exists in different forms such as limestone (rock), carbon dioxide (gas), carbonic acid (water), and animals (life) within Earth systems and how those forms can be beneficial or harmful to humans.
Earth Systems E2.3b Explain why small amounts of some chemical forms may be beneficial for life but are poisonous in large quantities (e.g., dead zone in the Gulf of Mexico, Lake Nyos in Africa, fluoride in drinking water).
Earth Systems E2.3c Explain how the nitrogen cycle is part of the Earth system.
Earth Systems E2.3d Explain how carbon moves through the Earth system (including the geosphere) and how it may benefit (e.g., improve soils for agriculture) or harm (e.g., act as a pollutant) society.
Earth Systems E2.4A Describe renewable and nonrenewable sources of energy for human consumption (electricity, fuels), compare their effects on the environment, and include overall costs and benefits.
Earth Systems E2.4B Explain how the impact of human activities on the environment (e.g., deforestation, air pollution, coral reef destruction) can be understood through the analysis of interactions between the four Earth systems.
Earth Systems E2.4c Explain ozone depletion in the stratosphere and methods to slow human activities to reduce ozone depletion.
Earth Systems E2.4d Describe the life cycle of a product, including the resources, production, packaging, transportation, disposal, and pollution.