تمارين علوم حياة ارض اولى باك is a free mobile application developed by mehdi hicham that provides high school students with exercises and solutions for life and earth sciences. The app is designed for first-year high school students in experimental science. It covers a wide range of topics, including biology, geology, and earth science.

The app is user-friendly, and the exercises are well-organized by topic, making it easy for students to find what they need. Each exercise is accompanied by a solution, which is a helpful feature for students who are struggling to understand a concept. The app is available for Android devices and is a great tool for students who want to practice their science skills on the go.