Colorful Test Tubes in Lab Rack - Science Experiment Illustration #3637804 (License: Personal Use)

The image shows a gray metal test tube rack holding six transparent glass test tubes. From left to right, the liquids are purple, yellow, light blue, green, pink, and clear (empty), with varying levels and visible bubbles indicating active reactions. The clean, flat vector style makes it ideal for educational diagrams, presentations, or science-themed websites.

This image is commonly used on educational websites, science blogs, chemistry lesson pages, or children’s STEM resources to visually represent laboratory experiments, chemical reactions, or scientific inquiry. It supports user intent around learning basic chemistry concepts or illustrating lab equipment.