# ScienceStruck

> ScienceStruck publishes evergreen science reference and explainer articles: chemistry, physics, biology, earth science, math and more, organized into the topic categories below.

## Categories

- [Biology](https://sciencestruck.com/biology)
- [Chemistry](https://sciencestruck.com/chemistry)
- [Earth Science](https://sciencestruck.com/geology)
- [Geography](https://sciencestruck.com/geography)
- [Inventions & Discoveries](https://sciencestruck.com/inventions)
- [Math](https://sciencestruck.com/math)
- [Physics](https://sciencestruck.com/physics)
- [Science Facts](https://sciencestruck.com/science-facts)
- [Science Projects](https://sciencestruck.com/experiments)
- [Social Sciences](https://sciencestruck.com/social-science)
- [Technology](https://sciencestruck.com/technology)
- [Weather & Climate](https://sciencestruck.com/weather)

## Guides

The site's most comprehensive articles, each the entry point to a cluster of related coverage:

- [Every Species Interaction Comes Down to Plus, Minus, or Zero](https://sciencestruck.com/biology/species-interactions)
- [How Sunlight Becomes a Fox, and How Little of It Survives the Trip](https://sciencestruck.com/biology/food-chains-webs)
- [The World’s Ecosystems Sort Themselves by Temperature and Rainfall](https://sciencestruck.com/biology/types-of-ecosystems-you-should-know-about)
- [Acids, Bases, and Solutions, Starting From a Pot of Purple Cabbage](https://sciencestruck.com/chemistry/acids-bases-solutions)
- [Every Chemical Reaction You Meet Fits One of About Six Patterns](https://sciencestruck.com/chemistry/types-of-chemical-reactions)
- [Every Plastic on Your Desk Is the Same Trick Played Nine Ways](https://sciencestruck.com/chemistry/polymers-materials)
- [Every Shelf in the Chemistry Lab, and the One Job Each Tool Does Best](https://sciencestruck.com/chemistry/lab-equipment-techniques)
- [Every Square on the Periodic Table Is a Job Description](https://sciencestruck.com/chemistry/chemical-elements)
- [How Atoms Bond, and Why the Compounds They Make Are Nothing Like Them](https://sciencestruck.com/chemistry/atoms-compounds-bonding)
- [The Periodic Table Predicts How an Element Behaves Before You Look It Up](https://sciencestruck.com/chemistry/periodic-table)
- [The Whole Metals and Alloys Family, Sorted by What Holds Them Together](https://sciencestruck.com/chemistry/metals-alloys)
- [Earth’s Interior Is the Engine and the Continents Are What It Drives](https://sciencestruck.com/geology/earth-structure-tectonics)
- [Every Mineral on Earth Belongs to One of About Eight Chemical Families](https://sciencestruck.com/geology/types-of-minerals)
- [Every Rock You Pick Up Is Halfway Through Becoming Something Else](https://sciencestruck.com/geology/igneous-sedimentary-metamorphic-rocks)
- [How Volcanoes Work: Following the Pressure From Melt to Vent](https://sciencestruck.com/geology/volcanoes)
- [What Died and When: Reading Earth’s History in Eras and Fossils](https://sciencestruck.com/geology/earth-history-fossils)
- [Every Landform Is a Score in a Fight Between Building and Wearing Down](https://sciencestruck.com/geography/types-of-landforms)
- [How to Tell a Great Scientist From a Famous One](https://sciencestruck.com/inventions/great-scientists)
- [Every Type of Energy Is Either Moving or Waiting to Move](https://sciencestruck.com/physics/types-of-energy)
- [A Science Fair Project Is a Question You Test, Not a Thing You Build](https://sciencestruck.com/experiments/science-fair-projects)
- [Every Contact Leaves a Trace: How Forensic Science Answers What Happened](https://sciencestruck.com/social-science/forensic-investigation)
- [Sociology and Philosophy Point Different Instruments at the Same Crowd](https://sciencestruck.com/social-science/sociology-concepts)
- [The Layers of the Atmosphere Begin Where the Temperature Turns Around](https://sciencestruck.com/weather/layers-of-earths-atmosphere)
- [The Three Engines Behind Every Storm on the Forecast Map](https://sciencestruck.com/weather/which-are-different-types-of-storms)
- [Two Questions Turn Any Sky Into the Ten Types of Clouds](https://sciencestruck.com/weather/clouds)
- [Weather Is Four Numbers, and We Have an Instrument for Each One](https://sciencestruck.com/weather/weather-basics)

## Machine-readable access

- Full URL list: https://sciencestruck.com/sitemap-index.xml
- Article catalog with token estimates: https://sciencestruck.com/api/agent/catalog.json
- Any article's source markdown is available by requesting its page URL with `Accept: text/markdown` instead of loading the rendered HTML.
- Content usage policy: ai-train=no, search=yes, ai-input=yes

## Site

- [About](https://sciencestruck.com/about)
- [Contact](https://sciencestruck.com/contact)