Free Grade 9 Science Worksheets and Resources
http://www.testdesigner.com/questions/Science
Create a range of free printable science tests and quizzes for Grade 9 students. For students needing extra work to consolidate their skills or move further ahead this test designer offers other grade levels.
This site offers a range of science study material suitable for Grade 9. Free Grade 9 science worksheets covering Life Sciences, Chemistry and Earth Sciences. The site can be a little confusing but check out Study Tools and Games for some fun ways to learn. Probably not for anyone planning science at University.
http://www.thevirtuallab.org/curriculum/grade-9-science
This site offers links to a wide range of both academic and applied level science including Physics, Chemistry, Biology and Earth & Space Sciences. Make no mistake, this Canadian site, is serious about science. This site is a good place to visit for Grade 9 science students looking to take further science courses in High School.