Litmus paper is a crucial supply for any laboratory, and is used in classrooms of all grade levels. These one hundred blue strips of litmus paper can be used to determine the pH category of a substance. By way of a mixture of dyes extracted from lichens, they tell you whether the substance is acidic or basic. If the substance is a base, the paper remains blue. If the substance is acidic, the paper will shift its color to red, allowing you to know whether you’re dealing with an acid or a base in your experiments. The paper will also turn purple in the presence of a neutral substance. A highly useful tool for basic chemistry.
This microscope is so versatile you can even take it with you on a job site!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Learn Chemistry While Creating Sweet Treats
Build your own windmill generator kit by recycling a plastic bottle!
Comprehensive collection of 30 fossils.
Build a tumbling robot that gets up right after it has fallen down, without any outside help!