1. Temperature SWBAT apply addition and subtraction of integers to Celsius and Fahrenheit temperature; use formulas to estimate temperatures in degrees Celsius and degrees Fahrenheit

2. Review What are the three measures of temperature? What are the three measures of temperature? Celsius, Fahrenheit, Kelvin Celsius, Fahrenheit, Kelvin At what temperature does water boil? At what temperature does water boil? 100 °C, 212 °F, 173K 100 °C, 212 °F, 173K At what temperature does water freeze? At what temperature does water freeze? 0 °C, 32 °F, 273K 0 °C, 32 °F, 273K What is average body temperature? What is average body temperature? 37 °C, 98.6 °F, 310K 37 °C, 98.6 °F, 310K What is average room temperature? What is average room temperature? 20 °C, 68 °F, 293K 20 °C, 68 °F, 293K

3. Compute the new Temperature Starting Temperature Change in Temperature Expression New Temperature 35°C Rises 15 ° -5°C Falls 10 ° 0°C Drops 12 ° -8°C Climbs 4 ° 35 + 15 45°C -5 + -10-15°C 0 + -12-12°C -8 + 4-4°C

4. Compute the new Temperature Starting Temperature New Temperature Equation Change in Temperature -20°F12°F 3°F-7°F 19°F23°F 11°F-9°F -20 + x = 12 ° 32° 3 + x = -7 ° -10° 19 + x = 23 °4°°4° 11 + x = -9 ° -20°

5. Formulas To change Fahrenheit to Celsius, subtract 30, then divide by 2 To change Fahrenheit to Celsius, subtract 30, then divide by 2 °C = (°F – 30) ÷ 2 °C = (°F – 30) ÷ 2 To change Celsius to Fahrenheit, multiply by 2, then add 30 To change Celsius to Fahrenheit, multiply by 2, then add 30 °F = 2 x °C + 30 °F = 2 x °C + 30

6. Examples Convert to Celsius Convert to Celsius 60 °F 60 °F -8 °F -8 °F -2 °F -2 °F 74 °F 74 °F 200 °F 200 °F Convert to Fahrenheit 7 °C -21 °C -4 °C 83 °C 62 °C

7. Complete the Try these problems on your paper 86°F 86°F 28°C 28°C 6°F 6°F -12°C -12°C -4°F -4°F 17°C 17°C 75°C 180°F -30°C -30°F -10°C 10°F