Enhance your optics experiments with our Semi-Circular Refraction Tanks. Each tank features a printed protractor, allowing precise observation and measurement of light refraction. Ideal for educational settings, these tanks come with detailed instructions and are sold in a convenient pack of 10. Use this item to measure the index of refraction of water, explore total internal reflection, compare the refraction of light in different media, investigate the law of refraction, and analyze light paths. 
 
Features:
 
Printed Protractor: Each tank includes a protracto