http://www.testdesigner.com/questions/Science
Create a range of free printable science tests and quizzes for Grade 11 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 11. Free Grade 11 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.