Summary

Key Concepts Recap:

Temperature Basics:

• Reliable measure of hotness/coldness
• Cannot always trust sense of touch
• Measured using thermometers

Types of Thermometers:

• Clinical: Body temperature (35-42°C range)
• Laboratory: General use (-10 to 110°C range)

Temperature Scales:

• Celsius (°C): Most common
• Fahrenheit (°F): Some regions
• Kelvin (K): SI unit, scientific

Applications:

• Medical diagnosis
• Scientific experiments
• Weather forecasting
• Industrial processes

Safety:

• Proper handling prevents breakage
• Clean thermometers after use
• Use appropriate type for specific purpose

🧪 Important Formulas & Facts

Key Conversions:

🔸 K = °C + 273.15

🔸 °F = (9/5 × °C) + 32

Important Values:

• Human body: 37°C = 98.6°F = 310 K
• Water freezing: 0°C = 32°F = 273 K
• Water boiling: 100°C = 212°F = 373 K
• Absolute zero: -273.15°C = -459.67°F = 0 K

🧠 Safety Precautions

Clinical Thermometer:

• Clean before and after use
• Don’t hold by tip
• Keep digital part dry
• Store safely after use

Laboratory Thermometer:

• Handle with care (can break)
• Don’t hold by bulb
• Immerse properly
• Read at eye level
• Don’t use for body temperature