The GED test comprises four subjects: Mathematical Reasoning, Reasoning Through Language Arts, Science, and Social Studies. Each subject assesses knowledge and skills that correspond to what a high school graduate is expected to know. The Mathematical Reasoning subject focuses on quantitative problem-solving and data analysis, while Reasoning Through Language Arts evaluates reading comprehension and writing skills. The Science section tests knowledge in life science, physical science, and earth and space science, whereas Social Studies addresses themes related to history, government, geography, and economic systems. Each subject can be taken individually, allowing test-takers to prepare and schedule their exams at their own pace. It is advisable to visit the current GED Testing Service website for more detailed information about each subject and the testing process.