Test Tube with Bubbling Blue Liquid - Science Lab Illustration #286155 (License: Personal Use)

This vector-style illustration depicts a transparent glass test tube holding a gradient blue liquid, with three white circular bubbles ascending through the solution. Horizontal dark-blue bands suggest measurement markings, while the black rim and cap indicate standard lab equipment design. The clean, stylized aesthetic makes it suitable for digital learning materials or science communication.

Commonly used on educational websites, science blogs, pharmaceutical landing pages, or infographics to represent laboratory work, chemical reactions, diagnostics, or research. Matches user intent for visual explanations of experiments, lab procedures, or STEM topics.