Test Tube with Two Liquid Layers and Bubbles - Science Illustration #3650671 (License: Personal Use)

This vector-style illustration depicts a glass test tube sealed with a tan cork stopper, containing two immiscible liquids: a translucent mint-green layer above and a vibrant cyan-blue layer below. Brown circular bubbles are dispersed throughout the lower layer, implying gas formation or effervescence. The clean lines and bold outlines make it suitable for digital learning materials or infographics.

Commonly used in educational websites, chemistry lesson pages, science blogs, or children’s STEM resources to visualize concepts like density, immiscibility, or gas production in reactions. Matches user intent for visual explanations of basic lab phenomena.