Lab Activity: Measuring with Metric 4. TEMPERATURE There are two temperature scales: the Fahrenheit (F) and Celsius (or "centigrade", C) scales. See Figure 2.9. Figure 2.9 The basic unit of temperature in the metric system that is used internationally is -100 C - 212 F the degree Celsius ("C). There are no commonly derived OF WATER units To get a feel for degrees Celsius, consider the following temperatures: . Ice water and the freezing point of water are O'C . Room temperature water is 20 to 25.C . Normal body temperature is 37"C . Water gets too painful to FREEZING POINT OC- 32 F- touch between 50- 60 C 85.588688 OF WATER . Water boils at 100*C Useful conversion formulas: .C to F Multiply by 9, then divide by 5, then add 32 F to 'C Deduct 32, then multiply by 5, CENTIGRADE FAHRENHEIT then divide by 9