Can I join a science class without a teacher?

Hi dessyig92,

All users are able to access all of the learning materials for free without needing a teacher or class code to join. You can access a full list of all of the available science courses from this page: https://www.khanacademy.org/science

I hope this helps! Please let me know if you have any additional questions!

How do you join a class without a teacher code?