[Chemistry, 7th grade?]

I looked at all the sugestions very helpful! Hollyday is it necessary to start with Chemistry I in NOEO or can I jump right into II with my kids? They know some chemistry. Also, if I only buy the textbook can I do the course. I have lots of science supplies like PH paper and I can get the books from the library. Am I missing something? $20 seems more in my budget than $120.

[Chemistry, 7th grade?]

I'm following TWM curriculum very closely. This year I found out that Smithsonian Microchem XM 5000 is discontinued.:confused: Does anyone have any suggestions that will make a well rounded chemistry course for a year with lots of home friendly experiments? Has SWB given any suggestions?