52 EXPERIMENTAL GENERAL SCIENCE 



3. How many Fahrenheit degrees equal 40 Centigrade degrees? 



4. Find the temperature of the school room in ^Fahrenheit degrees 

 and change to Centigrade temperature. 



5. Express the temperature of the blood in Centigrade degrees. 



6. Water at the temperature of 4C. is at its greatest density. What 

 temperature on the Fahrenheit scale is this? 



7. The protoplasm of living parts of plants is killed at about 122F. 

 At what temperature Centigrade are plants killed? 



8. Mercury boils at 357C. How hot is this on the Fahrenheit 

 scale? 



9. What temperature is 0F. on the Centigrade scale? 



10. What is the highest point reached by the Fahrenheit thermometer 

 in summer in your region? What is the lowest point reached in winter? 

 How many Centigrade degrees would this difference equal? 



11. White-hot iron has a temperature of about 2200F. What is its 

 temperature Centigrade? 



12. The temperature of the electric furnace is about 4000C. How 

 hot is this on the Fahrenheit scale? 



13. Most seeds will not sprout until the temperature reaches 41F. 

 How warm is this on the Centigrade scale? 



14. What temperature is absolute zero on the Fahrenheit scale? 



