Tag: Science lab

The brown paper bag test is a classic science experiment used to detect lipids. This simple and effective qualitative method relies on a lipid's inability to evaporate, leaving a distinct translucent spot on the paper after it has dried. Discover exactly how does the grease spot brown paper test work to identify fats and oils.

Starch, a complex carbohydrate, is how plants store excess energy created during photosynthesis. To detect its presence, the iodine test is the definitive method used by students and scientists alike. This classic experiment is a powerful way to visually demonstrate that photosynthesis has occurred by showing how to distinguish a presence of starch in leaves.