Which term describes the act of solving practical problems using scientific knowledge?

The term that best describes the act of solving practical problems using scientific knowledge is applied science. This branch of science focuses on the practical application of scientific principles and theories to real-world situations and challenges. In applied science, scientists utilize findings and insights from basic research to create technologies, improve processes, or develop solutions that directly address everyday problems. This approach bridges the gap between theoretical knowledge and practical implementation, making scientific advancements accessible and useful in various fields, such as medicine, engineering, and environmental science.