What is temperature?, Temperature tells us how hot or cold an object is., What is used to measure temperature?, A thermometer., What is the SI unit of temperature?, Kelvin (K)., Name two commonly used temperature scales., Celsius and Fahrenheit., What is the symbol for degree Celsius?, °C., What is a thermometer?, An instrument used to measure temperature., What is a clinical thermometer used for?, To measure body temperature., What is the normal human body temperature?, About 37°C., What is another name for body temperature?, Human body temperature., What is a laboratory thermometer used for?, To measure the temperature of substances during experiments., Can a clinical thermometer measure the temperature of hot water?, No., What is the freezing point of water?, 0°C., What is the boiling point of water?, 100°C., What does a thermometer contain for measuring temperature?, A temperature-sensitive material, such as a liquid or electronic sensor., Why should we read a thermometer at eye level?, To get an accurate reading., What is air temperature?, The temperature of the surrounding air., When is air temperature generally highest during the day?, In the afternoon., When is air temperature generally lowest?, Usually around early morning., Why does temperature change during the day?, Because the amount of heat received from the Sun changes., How does temperature change with altitude?, It generally decreases as altitude increases., Which is generally cooler—plains or mountains?, Mountains are generally cooler., Why do coastal areas have moderate temperatures?, Water heats and cools slowly., What happens to the temperature of a substance when it is heated?, Its temperature generally increases., What happens to the temperature of a substance when it is cooled?, Its temperature generally decreases., Why should we not touch the bulb of a thermometer while taking a reading?, Our body heat can affect the reading.

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