What are some hidden elements that are related to temperature measurement in Little Alchemy 2?

In Little Alchemy 2, there are a few elements related to temperature measurement that can be considered "hidden" or less obvious. Here are the steps to create them:

1. Thermometer
- Step 1: Create Glass by combining Sand and Fire.
- Step 2: Create Metal by combining Fire and Stone.
- Step 3: Combine Glass and Metal to create a Thermometer.

2. Temperature
- Step 1: Create Air by combining Pressure and Atmosphere (or by combining Fire and Water to create Steam, then combining Steam with Air).
- Step 2: Create Fire by combining Air and Energy (or by combining Wood and Fire).
- Step 3: Combine Air and Fire to create Temperature.

3. Heat
- Step 1: Create Fire (as described above).
- Step 2: Combine Fire with Energy to create Heat.

4. Cold
- Step 1: Create Ice by combining Water and Cold (or by combining Water and Air to create Snow, then combining Snow with Cold).
- Step 2: Combine Ice with Air to create Cold.

5. Fahrenheit and Celsius
- These are not directly available as elements in Little Alchemy 2, but the Thermometer and Temperature elements are the closest representations of temperature measurement.

Summary:
- Thermometer: Glass + Metal
- Temperature: Air + Fire
- Heat: Fire + Energy
- Cold: Ice + Air

These combinations should help you unlock the temperature-related elements in Little Alchemy 2. If you have any more questions or need further assistance, feel free to ask!