Washington DC Standards
DC.6.4. Heat (Thermal Energy): Broad Concept: The transfer of energy through radiation and convection currents affects many phenomena on the Earth's surface. As a basis for understanding this concept, students:
6.4.1. Explain the meaning of radiation, convection, and conduction (three mechanisms by which heat is transferred to, through, and out of the Earth's system).
6.4.2. Describe that the heat from the sun falls on Earth unevenly because of its spherical shape. Describe that regions close to the equator receive more concentrated solar energy than those closer to the poles.
DC.6.8. Plate Tectonics: Broad Concept: Plate tectonics explain important features of the Earth's surface and major geologic events. As the basis for understanding this concept, students:
6.8.1. Describe the solid lithosphere of Earth, including both the continents and the ocean basins, and how it is broken into several plates that ride on a denser, hot, and gradually deformable layer in the mantle called the asthenosphere (weak sphere).
6.8.10. Describe that under the ocean basins, molten rock may well up between separating plates to create new ocean floor.
6.8.12. Explain how physical evidence, such as fossils and surface features of glaciation, supports detailed explanations of how Earth's surface has evolved over geologic time.
6.8.2. Explain why the Earth has a hot interior.
6.8.3. Explain how lithosphere plates move very slowly, pressing against one another in some places, pulling apart in other places, and sliding past one another in others.
6.8.4. Compare and contrast oceanic plates and continental plates.
6.8.5. Explain the process in which plates push against one another, one of them may be dense enough to sink under the other, a process called subduction. Explain that oceanic lithosphere may sink under continental or oceanic lithosphere, but continental lithosphere does not subduct.
DC.6.9. Earth and Life History: Broad Concept: Evidence from rocks allows us to understand the evolution of life on Earth. As the basis for understanding this concept, students:
6.9.7. Observe and explain that fossils provide evidence of how life and environmental conditions have changed.
DC.CC.6-8.RST. Reading Standards for Literacy in Science and Technical Subjects
Craft and Structure
6-8.RST.4. Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6-8 texts and topics.