NATURE-STUDY LESSONS. 167 



(ff) Examine the contents of the beakers described 

 in No. (d). 



(c) Which water is at the higher temperature ? 



(d) Place equal pieces of ice in the two beakers. 



(e) Compare what takes place in the one with 



what takes place in the other. 



if) What causes the ice to melt? 



{g) Which quantity of water produced most melt- 

 ing? 



(Ji) Which, therefore, possessed the greater quan- 

 tity of heat? 



8. Does temperature mean the same as quantity of 

 heat? 



9. (a) Place a piece of ice of the same size as in 



No. 7 {d) in a beaker containing 1,200 

 grams of water at 40° C. (104° F.). 

 (b) Compare the result with that observed in the 

 experiment with water of the same tempera- 

 ture used in No. 7 {d). 



10. Upon what does the quantity of heat of a body 

 depend ? 



1 1. What is the difference between the temperature of 

 a body and its quantity of heat ? 



B. The Sense of Touch Cannot be Relied Upon to Give us 

 Accurate Information with Regard to Temperature. 



12. («) Prepare three beakers, or cups, of water. A, 



B and C. Make A as hot as you can bear 

 to hold your fingers in ; make B of the 

 temperature of your hand, so that it will 

 feel neither hot nor cold, and make C very 

 cold by putting ice into it 



