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 …

Practice Course Grade 7 Science Course challenge Test your knowledge of the skills in this course.

Jan 14, 2024 · Khanmigo isn’t just about tutoring students in math and science lessons, it can also foster your child’s creativity. Whether it is co-writing an adventure story or debating pressing contemporary …

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.

Video transcript Dr. Steven Zucker: We're in Central park in New York City, standing directly in back of the Metropolitan Museum of Art, looking at what is clearly the oldest monument in New York City. I …

Read the opinions in Lochner v. New York (1905) as selected by Caroline Fredrickson and Ilan Wurman.

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

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.

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 …

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