Scientific Skills
Observation, inference, variables, fair tests, evidence, and investigation design.
Osmia Learning
Science resources with room to think.
Interactive science lessons that run right in the browser — no accounts or student data required.
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Pick a unit, see the finished lessons.
Cell Biology
Photosynthesis, matter-building models, and how cells use instructions to build proteins.
Genetics & Heredity
DNA, RNA, proteins, alleles, Mendel's pea plants, and inheritance probability.
Ecology & Ecosystems
Kelp forests, food webs, energy flow, and trophic cascade reasoning.
Start here
Seven complete lessons to try first.
Lesson
Observation vs Inference: Science Detective Academy
Investigate a greenhouse mystery, separate observations from inferences, and revise explanations as new evidence appears.
Lesson
Variables and Fair Tests: The Plant Growth Investigation
Identify variables, control conditions, and design a fair pea-plant growth experiment.
Lesson
Kelp Forest Collapse
Investigate an urchin barren, trace energy through the food web, and test trophic cascades.
Lesson
Photosynthesis Mission
Trace one carbon atom into plant matter through models, maps, and a photosynthesis builder.
Lesson
DNA: The Code That Copies Itself
Build nucleotides, use base-pairing rules, and model how DNA copies itself.
Lesson
The Cell's Assembly Line
Follow DNA instructions into RNA and proteins to see how cells build what they need.
Lesson
Looks vs. Letters: Mendel’s Pea Plant Mystery
Investigate why two purple-flowered parents can have a white-flowered offspring.
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