NCES.8.P.1.3 Compare physical changes such as size, shape and state to chemical changes that are the result of a chemical reaction to include changes in temperature, color, formation of a gas or precipitate.
NCES.8.E.1.2 Summarize evidence that Earth's oceans are a reservoir of nutrients, minerals, dissolved gases, and life forms: estuaries; marine ecosystems; upwelling; behavior of gases in the marine environment; value and sustainability of marine resources; and deep ocean technology and understandings gained.
NCES.8.E.1.3 Predict the safety and potability of water supplies in North Carolina based on physical and biological factors, including: temperature; dissolved oxygen; pH; nitrates and phosphates; turbidity; and bio-indicators.
NCES.8.E.1.4 Conclude that the good health of humans requires: monitoring of the hydrosphere; water quality standards; methods of water treatment; maintaining safe water quality; and stewardship.
NCES.8.E.2.2 Explain the use of fossils, ice cores, composition of sedimentary rocks, faults, and igneous rock formations found in rock layers as evidence of the history of the Earth and its changing life forms.
NCES.8.L.3.2 Summarize the relationships among producers, consumers, and decomposers including the positive and negative consequences of such interactions including: coexistence and cooperation; competition (predator/prey); parasitism; and mutualism.