A wealth of problem-solving practice in the format that you want! This book is the ideal way to sharpen skills and prepare for your ACT Get the problem-solving practice you need with McGraw-Hill"s ACT Science Questions to Know by Test Day. Organized for easy reference and intensive practice, the questions cover all essential ACT science topics and include detailed answer explanations. Inside you will find: 500 ACT science questions and answers organized by subject Step-by-step solutions to every problem Content that follows current exam