Learn science using videos, articles, and TEKS-aligned practice exercises. Review the fundamentals of matter and energy, forces and motion, Earth's systems and processes, living …

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.

Biology archive Biology archive The biology archive contains legacy biology content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out …

Physics archive Physics archive The physics archive contains legacy physics content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out …

In this course, you'll explore the fascinating world of living things. Learn about cells, organisms, and ecosystems, all while gaining a deeper understanding of your place in Earth's web of life. …

In this course, you’ll explore organism growth and development, energy and matter in biological systems, molecular and classical genetics, natural selection and evolution, biodiversity and …

In this course, you’ll explore the fascinating world of atoms and molecules. Learn about atomic structure, isotopes and ions, the periodic table, chemical bonding, chemical reactions, …

Learn AP Computer Science Principles using videos, articles, and AP-aligned multiple choice question practice. Review the fundamentals of digital data representation, computer …

Practice Course Grade 6 Science 4,200 possible mastery points Mastered Proficient

Embark on an exciting journey through Grade 6 Science! Enjoy captivating activity videos and stimulating practice exercises. From microscopic wonders to gravity-defying feats, this course …