FIELD TRIPS BY GRADE LEVEL
8.L.3.1 Explain how factors such as food, water, shelter and space affect populations in an ecosystem.
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)
8.L.3.3 Explain how the flow of energy within food webs is interconnected with the cycling of matter (including water, nitrogen, carbon dioxide and oxygen).
8.E.1.3 Predict the safety and potability of water supplies in North Carolina based on physical and biological factors, including:
• Dissolved oxygen
• Nitrates and phosphates
.8.E.1.1 Explain the structure of the hydrosphere including:
• Water distribution on earth
• Local river basins and water availability
8.E.1.2 Summarize evidence that Earth’s oceans are a reservoir of nutrients, minerals, dissolved gases, and life forms:
• Marine ecosystems
• Value and sustainability of marine resources
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
Coordinating a Record of the Past
8.E.2.1 Infer the age of Earth and relative age of rocks and fossils from index fossils and ordering of rock layers (relative dating and radioactive dating).
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.
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