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Chemistry archive | Science | Khan Academy
Chemistry is the study of matter and the changes it undergoes.
Khan Academy | Free Online Courses, Lessons & Practice
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 …
6th grade math - Khan Academy
Learn sixth grade math—ratios, exponents, long division, negative numbers, geometry, statistics, and more. (aligned with Common Core standards)
Trigonometry | Khan Academy
Khan Academy provides comprehensive lessons and practice exercises on trigonometry, helping students understand and master the subject.
Biology archive | Science | Khan Academy
Explore biology topics with Khan Academy, offering free resources to learn about cells, genetics, evolution, ecology, and more.
Differential Calculus - Khan Academy
Explore Khan Academy's comprehensive differential calculus lessons and practice problems, all available for free to enhance your learning experience.
Organic chemistry | Science | Khan Academy
Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high school or college chemistry assumed (although there is some review).
Physics archive | Science | Khan Academy
Physics the study of matter, motion, energy, and force.
4th grade math - Khan Academy
Learn fourth grade math—arithmetic, measurement, geometry, fractions, and more. This course is aligned with Common Core standards.
Precalculus | Math | Khan Academy
The Precalculus course covers complex numbers; composite functions; trigonometric functions; vectors; matrices; conic sections; and probability and combinatorics. It also has two optional …