Neutral Litmus pH test paper tests for Neutrality of a solution, or its acidity or alkalinity, does not come with a color chart, test strip will turn red if dipped into an acidic solution (pH <7) or blue if dipped into an alkaline solution (pH >7), Size: 100 test strips
Vinyl Periodic Table Poster, Made of a durable, light weight, waterproof, Colored printing helps your students distinguish between metals, non-metals, and noble gas families, Has 5 grommets to easily hang on the wall or from the ceiling, Dimension: 8x4feet