PROBLEM 5 



29 



registers 50° at 7 a.m., make 50 your start- 

 ing point on the line, and if the thermome- 

 ter has risen to 56° at 8 o'clock, then count 

 off six squares on your graph paper above 

 the base line. Do this for each hour in 

 the 12 for which your record has been 

 made. Connect the marks made on the 

 vertical lines. The result is a curve like 

 the accompanying, showing the tempera- 

 ture record of the day. 



Conclusion. — What changes take place 

 in the temperature factor of a given day ? 



NOTE. — Another suggested exercise is : Relation 

 of the body to intake of water. 



>7 S 9 10 11 



