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Implementing State Standards
Connecticut Grade 9 Content Standards
9.3 - Various sources of energy are used by humans and all have advantages and disadvantages.
9.4 - Atoms react with one another to form new molecules.
9.5 – Due to its unique chemical structure, carbon forms many organic and inorganic compounds.
9.7 - Elements on Earth move among reservoirs in the solid earth, oceans, atmosphere and organisms as part of biogeochemical cycles.
9.8 - The use of resources by human populations may affect the quality of the environment.
9.9 - Some materials can be recycled, but others accumulate in the environment and may affect the balance of the Earth systems.