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 organisms and …

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.

This course is aligned to the middle school Next Generation Science Standards (NGSS). If you’ve mastered this content and want to explore biology at the next level, we recommend our high school …

This course is aligned to the middle school Next Generation Science Standards (NGSS). If you’ve mastered this content and want to explore physics at the next level, we recommend our high school …

Aug 14, 2025 · Free, high-quality science resources for grades 6–12, including hands-on activities, simulations, and teacher tools—all aligned to NGSS, TEKS, and AP standards.

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 will …

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

Mar 4, 2025 · If you’re a high school science teacher looking for interactive biology teaching tools that will engage your students, Khan Academy offers a range of free resources designed to support your …

Chemistry is the study of matter and the changes it undergoes.

Check out our free hands-on science activities that can be used by anyone, anywhere! Conduct investigations, develop models, analyze data, and much more. Each activity is anchored in a real …