Watch this mysterious and magical Spectra Stone change colors. It will change into different brilliant colors with just the slightest temperature change. This beautiful thermal liquid crystal science experiment is designed to change colors between the temperature of 61 degrees Fahrenheit (16 degrees Celsius) and 93 degrees Fahrenheit (34 degrees Celsius). Any temperature above or below that will turn the stone dark. Due to its curnved lens shape, the Spectra Stone will also change colors when viewed from different angles.Discover the incredible science behind this liquid crystal with the included color/temperature chart and scientific information.

What you'll get:

• One Liquid Crystal Spectra Stone.
  
• Educational scientific explanation.

Incredible Science Fun Learning Ideas:

• Thermal Liquid Crystal is made of cholesterol and therefore called cholesteric liquid crystal. The rod shaped molecules change their positions as temperatures change and reflect colors. This liquid crystal has two formulations microencapsulated so you see colors repeated. Since the Spectra Stone is a curved lens shape, viewing it at different angles will alter the color you see.
  To learn more go to www.wikipedia.org and search for liquid crystal.