Biology and geology asks you to see things you cannot see: the cell and its organelles, how genes pass from parents to children, the organs inside the body, the plates moving under our feet. In the textbook they are diagrams; in the exam you have to recognise them and reason with them.
Bajo el Microscopio combines a drawn cell with real slide photos to locate organelles; Genética has you predict offspring with a Punnett square; Rayos X asks you to point to organs on a body outline; Cadena Alimentaria orders who eats whom, and Órbita tests the solar system. Each topic also has its own study page with a summary and an exam.
With a summary, examples and a multiple-choice test.
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