Khan Academy
Khan Academy provides comprehensive and free educational resources for science.
Khan Academy
Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more. It’s all free for learners and teachers.
Biology - Khan Academy
The biology archive contains legacy biology content, and is not being updated with new content. Exercises and mastery mechanics will soon be removed from the biology archive. For our most up-to-date, mastery-enabled courses, check out High School Biology and AP Biology!
Khan Academy
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Computing - Khan Academy
Learn AP Computer Science Principles using videos, articles, and AP-aligned multiple choice question practice. Review the fundamentals of digital data representation, computer components, internet protocols, programming skills, algorithms, and data analysis.
Middle school Earth and space science - Khan Academy
Learn Earth and space science using videos, articles, and NGSS-aligned practice. Review the fundamentals of space systems, weather and climate, Earth's history and systems, and human impacts.
Content update: Brand new high school physics and biology …
May 8, 2024 · The Khan Academy science team has been hard at work creating new, high-quality high school physics and biology courses aligned to the Next Generation Science Standards (NGSS).
Unit 1: Cells and organisms - Science | Khan Academy
This unit will take you on a fascinating journey through the world of cells and organisms. You'll get an up-close look at plant and animal cells, learn about organelles, explore the organization of the human body, and gain a deeper understanding of sensory processing and the brain.
High school biology | Science | Khan Academy
Learn high school biology using videos, articles, and NGSS-aligned practice. Explore the fundamentals of cells, organism growth and development, photosynthesis and cellular respiration, molecular and classical genetics, natural selection and …
High school chemistry | Science | Khan Academy
Learn high school chemistry using videos, articles, and NGSS-aligned practice. Explore the fundamentals of atomic structure, chemical bonding, chemical reactions, thermochemistry, solutions, acids and bases, and nuclear chemistry.