# Grade 7: Science A course roadmap (science). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 13 concepts ready. In the app: https://ai.page/roadmap/ne-sci-grade-7 Part of: [Nebraska: Science](https://ai.page/roadmap/ne-sci.md) Goal: Nebraska academic standards: Science, Grade 7 ## 1. History of Earth · Gather, analyze, and communicate evidence to explain Earth’s history. - [Fossils as Evidence](https://ai.page/c/fossils-as-evidence/index.md): Analyse and interpret data from fossils to provide evidence of organisms and environments that existed long ago - [Life Changed Over Time](https://ai.page/c/life-changed-over-time/index.md): Recognise that living things have changed over time and that fossils provide information about organisms that inhabited the Earth millions of years ago ## 2. Earth’s Systems · Gather, analyze, and communicate evidence of the flow of energy and cycling of matter associated with Earth’s materials and processes. - [Earth's Atmosphere & CO2](https://ai.page/c/earth-s-atmosphere-and-co2/index.md): Describe the composition of Earth's atmosphere (mainly nitrogen and oxygen, with small amounts of CO₂ and other gases), explain how human activity increases CO₂, and describe the impact on global climate - [Earth's atmosphere](https://ai.page/c/earth-s-atmosphere/index.md): Develop a model to describe ways the geosphere, biosphere, hydrosphere, and atmosphere interact as connected Earth systems - [The Water Cycle](https://ai.page/c/the-water-cycle/index.md): Describe the water cycle, tracing water through evaporation, condensation, precipitation, surface runoff, and transpiration in plants, explaining how the sun drives the cycle ## 3. Matter and Energy in Organisms and Ecosystems · Gather, analyze, and communicate evidence of the flow of energy and cycling of matter in organisms and ecosystems. - [Matter Cycling in Ecosystems](https://ai.page/c/matter-cycling-in-ecosystems/index.md): Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment in an ecosystem ## 4. Interdependent Relationships in Ecosystems · Gather, analyze, and communicate evidence of interdependent relationships in ecosystems. - [Food Webs & Interdependence](https://ai.page/c/food-webs-and-interdependence/index.md): Construct and interpret food webs showing the interdependence of organisms in an ecosystem, explaining how a change in one population affects others ## 5. Chemical Reactions · Gather, analyze, and communicate evidence of chemical reactions. - [Physical vs Chemical Changes](https://ai.page/c/physical-vs-chemical-changes/index.md): Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation of mass to understand both types - [Types of Chemical Reaction](https://ai.page/c/types-of-chemical-reaction/index.md): Identify and describe four types of chemical reaction: combustion (burning in oxygen), oxidation (gain of oxygen), thermal decomposition (breaking down by heat), and displacement (more reactive metal replaces less reactive one) - [Reactions That Release or Absorb Heat](https://ai.page/c/reactions-that-release-or-absorb-heat/index.md): Distinguish between exothermic reactions (release energy, temperature rises) and endothermic reactions (absorb energy, temperature falls), with everyday and industrial examples ## 6. Structure and Properties of Matter · Gather, analyze, and communicate evidence of the structure, properties, and interactions of matter. - [Matter Is Made of Particles](https://ai.page/c/matter-is-made-of-particles/index.md): Develop a model to describe that matter is made of particles too small to be seen, and that this explains properties of solids, liquids, and gases - [Ceramics, Polymers & Composites](https://ai.page/c/ceramics-polymers-and-composites/index.md): Describe the properties and uses of ceramics (hard, brittle, heat-resistant), polymers (flexible, lightweight, variable), and composites (combine properties of constituent materials), giving real-world examples of each - [Atoms, Elements & Compounds](https://ai.page/c/atoms-elements-and-compounds/index.md): Explain the differences between atoms, elements, and compounds; describe the simple Bohr model of the atom (nucleus with protons and neutrons, electrons in shells); and write and interpret chemical symbols and simple formulae ## Health: 0 of 100 Of its 13 own concepts: 0 have an explanation, 0 have practice, 0 have a measurement question, 0 have a checked version. Findings (each is a task for anyone's AI): - Fossils as Evidence has no explanation yet - Life Changed Over Time has no explanation yet - Earth's Atmosphere & CO2 has no explanation yet - Earth's atmosphere has no explanation yet - The Water Cycle has no explanation yet - Matter Cycling in Ecosystems has no explanation yet - Food Webs & Interdependence has no explanation yet - Physical vs Chemical Changes comes before Atoms, Elements & Compounds, which it needs - Physical vs Chemical Changes has no explanation yet - Types of Chemical Reaction has no explanation yet - Reactions That Release or Absorb Heat has no explanation yet - Matter Is Made of Particles has no explanation yet - Ceramics, Polymers & Composites has no explanation yet - Atoms, Elements & Compounds has no explanation yet Credit: The structure of Nebraska academic standards: Science (https://www.education.ne.gov/wp-content/uploads/2024/09/Nebraska-Science-Standards-24-corrected-9-19-24.pdf); concepts from the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy, mapped to its standards by Marble.