The Moribund Institute
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500 Science

[May 18, 2026]
THE_MORIBUND_INSTITUTE // DEWEY CLASS 500

500 – Pure Science & Mathematics

The Institute wing for mathematics, astronomy, physics, chemistry, earth science, biology, natural history, scientific method, measurement, classification of nature, and the grand habit of asking the universe to show its work.

Shelves in 500

500 Science The main shelf for pure science, mathematics, nature, and scientific explanation. Mathematics Numbers, patterns, proofs, geometry, algebra, probability, statistics, and formal structures. Astronomy Planets, stars, galaxies, cosmology, celestial observation, and the high dark furniture. Physics Matter, motion, energy, fields, forces, light, time, particles, and physical law. Chemistry Elements, molecules, reactions, materials, compounds, and the behavior of substances. Earth Science Geology, weather, climate, oceans, rocks, landforms, and planetary systems. Paleontology Fossils, ancient life, extinct creatures, deep time, and the archive underfoot. Biology Life, cells, organisms, genetics, evolution, ecology, anatomy, and living systems. Botany Plants, fungi-adjacent confusion, growth, classification, leaves, roots, and green machinery. Zoology Animals, behavior, anatomy, habitats, taxonomy, and creaturely arrangements. Natural History Observation of nature, species, environments, field notes, specimens, and old cabinet energy. Scientific Method Observation, hypothesis, experiment, measurement, evidence, models, and replication.

Use this class when the post is mainly about the natural world, mathematics, scientific explanation, observation, or classification of nature. If the post is about applied tools, engineering, medicine, or programming, also consider 600 Technology. If it is about the history of science, also add 900 History.

Suggested Lesson Types

Science Lessons Short explanations of scientific concepts, discoveries, classifications, and natural systems. Observation Logs Nature notes, field observations, sky watching, specimen trails, and recorded phenomena. Concept Drills Interactive vocabulary for force, atom, species, ecosystem, theorem, orbit, and so forth. Diagram Studies Annotated charts, biological structures, cycles, systems, maps, and scientific visuals. Science Wiki Walks Guided trails through Wikipedia, Wikiversity, or reference pages about science topics. Interactive Exercises Tap-to-build, flashcards, quizzes, reading checks, and embed-based science lessons.

Example 500 Lesson Embed

A science lesson can pair a compact explanation with a vocabulary or concept-ordering exercise.

This is useful for scientific vocabulary, method steps, taxonomies, definitions, and short comprehension checks after a reading passage. 
<div class="mor-tap-to-build" data-questions='[
  {
    "prompt": "Put the science sentence in order:",
    "phrase": "A hypothesis is tested by evidence.",
    "answer": ["A", "hypothesis", "is", "tested", "by", "evidence."],
    "distractors": ["quietly", "lantern", "purple", "ancient"]
  },
  {
    "prompt": "Build the biology sentence:",
    "phrase": "Cells are the basic units of life.",
    "answer": ["Cells", "are", "the", "basic", "units", "of", "life."],
    "distractors": ["river", "machine", "only", "stone"]
  }
]'></div>

<script src="https://mor-blogger-embeds.pages.dev/tap-to-build/tap-to-build.js"></script>

Recent 500 Entries

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