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Gas Spectrum analysis tubes. The complete Spectrum Tube Set comes 14 different gas spectrum tubes.
Complete Optics Set uses 1, 3, or 5 Laser Beams! The most complete, economical optics kit you'll find!
Fill these semicircular cells with different liquids to observe their refractive properties. Great for showing total internal reflection! Measure angles with the printed protractor.
Demonstrate refraction, reflection, color, and color mixing with these low cost and easy to use light sticks.
This handsome wall chart, covering the visible portion of the solar spectrum, makes an excellent teaching aid for any science classroom.
Teacher-designed for student exploration of light beams! This versatile system allows students to see and control light beams.