Free Educational & Concept Icons Set - Clock, Cactus, Cube, Science, Data, Cake, Penguin, Recycling #195099 (License: Personal Use)

This high-contrast icon collection includes a silver analog clock, a spiky green cactus with desert background, a solved 3×3 Rubik’s cube, a blue liquid-filled Erlenmeyer flask, a woman presenting a colorful pie chart, a frosted chocolate birthday cake with five lit candles, the Tux Linux penguin mascot, and a blue circular recycling action icon. Each icon is cleanly rendered in flat vector style with bold outlines and vibrant colors, optimized for clarity at small sizes.

Used on educational resource sites, teacher toolkits, STEM curriculum pages, presentation templates, or open-source project documentation; serves users seeking free, thematic icon sets for infographics, apps, or classroom materials.