I teach chemistry to Pre-Health students at the local college and also to distance students throughout Ontario. The college uses Late Nite Labs for the distance students and I agree with 6wildhorses above - it's not the old click-on-anything-until-you-get-the-right-answer online lab simulations that we're all used to seeing. Downside - the students don't get any experience with using lab equipment. Upside - the students can perform and do analysis on many labs that they wouldn't otherwise get to do. I have an entire post somewhere about my thoughts regarding students doing hands-on labs without an expert there to guide them.
The fee structure is listed here:
And the chemistry labs are listed here:
If you contact them and explain you are a homeschooler, they should allow you to have an instructor account for free where you set up your "class" and choose the labs you want your student to do. Your student will then sign up for a student account and that's when the fee comes into play.
That's kind of a quick explanation. If you have any further questions, feel free to PM me - I've used Late Nite Labs in my college classes for the last two years so I've had a bit of experience with it.