Science - Khan Academy
Learn high school biology using videos, articles, and NGSS-aligned practice. Explore the fundamentals of cells, organism growth and development, photosynthesis and cellular respiration, molecular and classical genetics, natural selection and …
Khan Academy | Free Online Courses, Lessons & Practice
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. It’s all free for learners and teachers.
Biology - Khan Academy
Explore. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today!
Algebra I - Khan Academy
Hands-on science activities. NEW. AP®︎/College Biology; AP®︎/College Chemistry; ... 9th grade reading and vocab. NEW. 10th grade reading and vocab. NEW. Grammar; ... Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501(c)(3) nonprofit organization. ...
High school biology (DEPRECATED) | Science | Khan Academy
High school biology (DEPRECATED) Test your knowledge of the skills in this course. Start Course challenge. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today!
9th grade reading & vocabulary - Khan Academy
ELA practice and instruction for 9th grade, covering reading comprehension and vocabulary. Aligned to Common Core State Standards for Reading: Literature; Reading: Informational Text; and Vocabulary Acquisition and Use.
Free Math Worksheets - Khan Academy Blog
Looking for free math worksheets? You’ve found something even better! That’s because Khan Academy has over 100,000 free practice questions. And they’re even better than traditional math worksheets – more instantaneous, more interactive, and more fun! Just choose your grade level or topic to get access to 100% free practice questions ...
Chemistry - Science | Khan Academy
Chemistry archive 11 units · 48 skills. Unit 1 Atoms, compounds, and ions. Unit 2 Chemical bonds. Unit 3 Chemical reactions and stoichiometry. Unit 4 More about chemical reactions. Unit 5 Gases and kinetic molecular theory. Unit 6 States of matter and intermolecular forces. Unit 7 Chemical equilibrium. Unit 8 Acids, bases, and solutions.
High school chemistry - Science | Khan Academy
Course challenge. Test your knowledge of the skills in this course. Start Course challenge. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today! About. News.
ELA practice (beta) | 2nd - 9th grades | Khan Academy
ELA practice exercises (beta) for 2nd to 9th grade, covering reading comprehension and vocabulary. Aligned to Common Core State Standards for Reading: Literature; Reading: Informational Text, and Vocabulary Acquisition and Use.