Math Is Fun
Math Is Fun: Interactive Thermometer
An interactive thermometer shows temperature in both Celsius and Fahrenheit and "translates" the temperature you choose into real life situations, like "Fun in the Snow," "Nice Sunny Day," or "Boiling Water."
Educaplus (Jesús Peñas Cano)
Educaplus: Escalas Termometricas
See the relationship between Celsius, Fahrenheit and Kelvin scales with this interactive activity.
Other
Accurate Conversion of Temperature
This site provides information on the two simple ways to convert Celsius to Fahrenheit and vice versa.
Curated OER
Temperature Conversion Online
This temperature generator site will convert temperatures to degrees Celcius, Fahrenheit, kelvin, degrees Reaumur, and rankine.