Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. 500 Ways to Achieve Your Highest Score We want you to succeed on the Science section of the ACT. That's why we've selected these 500 questions to help you study more effectively, use your preparation time wisely, and get your best score. These questions are similar to the ones you'll find on the ACT so you will know what to expect on test day. Each question includes a concise, easy-to-follow explanation in the answer key for your full understanding of the concepts. Whether you have been studying all year or are doing a last-minute review, McGraw-Hill: 500 ACT Science Questions to Know by Test Day will help you achieve the high score you desire. Sharpen your subject knowledge and build your test-taking confidence with: 500 ACT science questions Full explanations for each question in the answer key A format parallel to that of the ACT exam