# Grade 8: Science

A course roadmap (science). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 10 concepts ready. In the app: https://ai.page/roadmap/wv-sci-grade-8

Part of: [West Virginia: Science](https://ai.page/roadmap/wv-sci.md)

Goal: West Virginia academic standards: Science, Grade 8

## 1. Engineering, Technology, and Applications of Science

- [Comparing Possible Solutions](https://ai.page/c/comparing-possible-solutions/index.md): Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints

## 2. Life Science

- [Variation in Species](https://ai.page/c/variation-in-species/index.md): Explain variation within and between species, distinguishing between continuous variation (e.g. height) and discontinuous variation (e.g. blood group), and between genetic and environmental causes
- [Genetic Mutation](https://ai.page/c/genetic-mutation/index.md): Explain genetic mutation as a random change in DNA sequence, describe causes of mutation (e.g. radiation, chemicals, copying errors), and explain that most mutations are neutral, some harmful, and a few beneficial
- [How Natural Selection Works](https://ai.page/c/how-natural-selection-works/index.md): Explain natural selection as the mechanism of evolution: heritable variation + competition for resources + differential survival and reproduction = change in allele frequency over generations
- [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
- [Evidence-Based Classification](https://ai.page/c/evidence-based-classification/index.md): Give reasons for classifying plants and animals based on specific characteristics, using evidence to justify classification decisions

## 3. Physical Science

- [Conservation of Mass](https://ai.page/c/conservation-of-mass/index.md): Measure and provide evidence that the total weight of matter is conserved regardless of the type of change (heating, cooling, or mixing)
- [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
- [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
- [How Materials Change State](https://ai.page/c/how-materials-change-state/index.md): Explain melting, freezing, boiling, condensing, and sublimation using the particle model, interpreting heating and cooling curves to identify melting and boiling points

## Health: 0 of 100

Of its 10 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):

- Comparing Possible Solutions has no explanation yet
- Variation in Species has no explanation yet
- Genetic Mutation has no explanation yet
- How Natural Selection Works has no explanation yet
- Fossils as Evidence has no explanation yet
- Evidence-Based Classification has no explanation yet
- Conservation of Mass has no explanation yet
- Atoms, Elements & Compounds has no explanation yet
- Physical vs Chemical Changes has no explanation yet
- How Materials Change State has no explanation yet

Credit: The structure of West Virginia academic standards: Science (https://apps.sos.wv.gov/adlaw/csr/readfile.aspx?DocId=54673&Format=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.