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.
Working model representing the sun, earth, and moon and their relationships.
Defy gravity with this cool balancing eagle!
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
The Wimshurst Machine is a high quality static machine for student labs.
Experience this sphere powered by the sun!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
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