The Iodine Test is a simple chemical test used to detect the presence of starch in a sample. When iodine solution, which is typically brown, is added to a substance containing starch, it changes color to a deep blue or black. This color change indicates a positive result for starch, making the test useful in various scientific and educational settings. This test is commonly used in laboratories and classrooms to demonstrate the properties of carbohydrates. It can help students understand the relationship between starch, iodine, and chemical reactions, providing a visual representation of how certain substances interact.