8th Grade Essentially Science Standards


Physics


{Motion and Forces
No 8th Grade Expectations for this objective}


OBJECTIVE:
Matter, Properties and Change
8.P.1 Understand the properties of matter and changes that occur when matter interacts in a closed system.
8.P.1.1 Classify matter as elements, compounds, or mixtures based on how the atoms are packed together in arrangements.
8.P.1.2. Explain how the physical properties of elements and their reactivity have been used to produce the current model of the Periodic Table of elements.
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.
8.P.1.4. Explain how the idea of atoms and a balanced chemical equation support the law of conservation of mass
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WEB PAGES:
CHEM4Kids.com
Elements Used in Space
Metric Size
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Creating a Compound

OBJECTIVE:
Energy: Conservation and Transfer
8.P.2 Explain the environmental implications associated with the various methods of obtaining, managing and using energy resources.
8.P.2.1. Explain the environmental consequences of the various methods of obtaining, transforming, and distributing energy.
8.P.2.2 Explain the implications of the depletion of renewable and nonrenewable energy resources and the importance of conservation
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Earth Science


{Earth in the Universe
No 8th Grade Expectations for this objective}

OBJECTIVE:
Earth Systems, Structures and Processes
8.E.1 Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans.
8.E.1.1 Explain the structure of the hydrosphere including: water distribution on earth, local river basin and water availability.
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, deep ocean technology and understandings gained.
8.E.1.3 Predict the safety and potability of water supplies in North Carolina based on physical and biological factors, including: temperature, dissolve oxygen, pH, nitrates and phosphates, turbidity, bio-indicators.
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, stewardship and human impact.
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OBJECTIVE:
Earth History
8.E.2 Understand the history of Earth and its life forms based on evidence of change recorded in fossil records and land forms.
8.E.2.1 Infer the age of Earth and relative age of rocks and fossils from index fossils and ordering of rocks 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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Radioactive Dating Game
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Life Science

OBJECTIVE:
Structures and Functions of Living Organisms
8.L.1 Understand the hazards caused by agents of diseases that affect living organisms.
8.L.1.1 Summarize the basic characteristics of viruses, bacteria, fungi and parasites relating to the spread, treatment and prevention of disease.
8.L.1.2 Explain the difference between epidemic and pandemic as it relates to the spread, treatment and prevention of disease.
8.L.2 Understand how biotechnology is used to affect living organisms.
8.L.2.1 Summarize aspects of biotechnology including: specific genetic information available, careers, economic benefits to North Carolina, ethical issues, implications for agriculture.
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OBJECTIVE:
Ecosystems
8.L.3 Understand how organisms interact with and respond to the biotic and abiotic components of their environment.
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), parasitism, and mutualism.
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).
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WEB SITES:
Energy Transferred Through a Community of Organisms- Virtual Lab
Model Ecosystems
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OBJECTIVE:
Evolution and Genetics
8.L.4Understand the evolution of organisms and landforms based on evidence, theories and processes that impact the earth over time.
8.L.4.1 Summarize the use of evidence drawn from geology, fossils, and comparative anatomy as the basis of the theory of evolution.
8.L.4.2 Explain the relationship between genetic variation and an organism’s ability to adapt to its environment.
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Natural Selection
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OBJECTIVE:
Molecular Biology
8.L.5 Understand the composition of various substances as it relates to their ability to serve as a source of energy and building materials for growth and repair of organisms.
8.L.5.1 Summarize how food provides the energy and the molecules required for building materials, growth and survival of all organisms (to include plants).
8.L.5.2 Explain the relationship among a healthy diet, exercise, and the general health of the body (emphasis on the relationship between respiration and digestion).
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