Learn about all the sciences, from physics, chemistry and biology, to cosmology and astronomy, across hundreds of videos, articles and practice questions.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of …

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In this module, we will learn how to monitor and self-regulate our own learning, evaluate our learning errors and develop strategies to improve our academic goals and problem-solving …

Nov 19, 2020 · Learning science falls in different academic disciplines including educational psychology, cognitive psychology, social psychology, and more recently, neuroscience. In …

Learn biology using videos, articles, and NGSS-aligned practice. Review the fundamentals of cell biology, organism growth and reproduction, photosynthesis, cellular respiration, ecology, …

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.

The Hour of Code is a global movement by Computer Science Education Week and Code.org reaching tens of millions of students in 180+ countries through a one-hour introduction to …

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

Explore advanced computer science topics from algorithms (how we solve common computing problems and measure our solutions' efficiency), to cryptography (how we protect secret …