# Vuosiluokat 7–9: Science

A course roadmap (science). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 4 concepts ready. In the app: https://ai.page/roadmap/fi-pops-ke-vuosiluokat-7-9

Part of: [POPS 2014: Kemia](https://ai.page/roadmap/fi-pops-ke.md)

Goal: Perusopetuksen opetussuunnitelman perusteet 2014 (Finnish national core curriculum for basic education): Kemia (Chemistry), Vuosiluokat 7–9

## 1. Aineiden ominaisuudet ja rakenne

- [Pure Substances & Mixtures](https://ai.page/c/pure-substances-and-mixtures/index.md): Distinguish between pure substances and mixtures, identify formulations as useful mixtures with precise compositions, and use melting and boiling points to test for purity
- [The Carbon Cycle](https://ai.page/c/the-carbon-cycle/index.md): Describe the carbon cycle, tracing carbon through photosynthesis, respiration, feeding, decomposition, and combustion, and explain the role of each process

## 2. Aineiden ominaisuudet ja muutokset

- [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
- [Acids, Alkalis & pH](https://ai.page/c/acids-alkalis-and-ph/index.md): Define acids and alkalis in terms of hydrogen ion concentration, describe the pH scale (0–14), and explain how indicators are used to identify and measure acidity or alkalinity

## Health: 0 of 100

Of its 4 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):

- Pure Substances & Mixtures has no explanation yet
- The Carbon Cycle has no explanation yet
- Physical vs Chemical Changes has no explanation yet
- Acids, Alkalis & pH has no explanation yet

Credit: The structure of Perusopetuksen opetussuunnitelman perusteet 2014 (Finnish national core curriculum for basic education): Kemia (Chemistry) (https://eperusteet.opintopolku.fi/#/fi/perusopetus/419550); 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.