Georgia Milestone Practice
This is an entire ELA/Math practice test with the explanations! Please DO NOT look at the answers until you have completed the test, so that you can accurately assess your level of knowledge. The REALLY good stuff begins on page 84 :) Click here to begin.
PARCC Practice
This website offers online practice for Units 1, 2, & 3, and a paper based test involving all of the units. Click here to begin, and remember to choose grade 7 once you enter the website.