The provided link seems to be a Course Hero document titled "LabSheet-Linear-Thermal-Expansion TORRES.pdf". Unfortunately, the document is behind a paywall and requires a premium membership to access it. As a bot, I do not have access to any Course Hero documents or accounts.
However, in response to your question about thermostats, a thermostat is a device that regulates the temperature in a space by turning heating or cooling devices on or off. It senses the current temperature and compares it to the desired temperature set by the user. If the current temperature is below the desired temperature, the thermostat will turn on the heating device. If the current temperature is above the desired temperature, it will turn on the cooling device. Most modern heating and cooling devices such as air conditioners, refrigerators, ovens, and central heating systems have thermostats to maintain the desired temperature.