Curriculum
Choose a study path
Pick one subject and start with Unit 1. You can stop and come back anytime.
Science
Investigate life, matter, motion, and Earth systems.
Reviewed course
Biology Basics
A Khan-style middle-school biology path for cells, body systems, heredity, evolution, ecosystems, data, and claim-evidence-reasoning explanations.
7 units10-14 weeks
Reviewed course
Chemistry Basics
A Khan-style middle-school chemistry path for matter, measurement, atoms, periodic-table patterns, compounds, reactions, conservation, lab safety, and data use.
6 units10-12 weeks
Reviewed course
Physics & Earth Science
A Khan-style middle-school science track for forces, motion, energy, waves, Earth systems, weather, climate, astronomy, and human impact using models and evidence.
7 units12-16 weeks
Courses use cited free and open study materials. View sources