Scientific investigation is a systematic process used to explore and understand the natural world. It involves making observations, forming questions, and developing hypotheses that can be tested through experiments. Researchers collect data and analyze results to draw conclusions, which helps to expand knowledge in various fields such as biology, chemistry, and physics. The scientific method is a key component of scientific investigation, guiding researchers through steps like experimentation and peer review. This method ensures that findings are reliable and can be replicated by others. Ultimately, scientific investigation contributes to advancements in technology, medicine, and environmental science, benefiting society as a whole.