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Learn sixth grade math—ratios, exponents, long division, negative numbers, geometry, statistics, and more (aligned with Common Core standards)
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Explore biology topics with Khan Academy, offering free resources to learn about cells, genetics, evolution, ecology, and more
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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 High School Physics, AP Physics 1, and AP Physics 2!
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Chemistry is the study of matter and the changes it undergoes
- 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)
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