42 



GENEKAL SCIENCE 



DECANTER 



the jar A will force the water up through the jet in the flask, forming 

 a fountain. 



Why does the water run out of flask F into jar 5? 



Why will the water in A rush up 

 into the flask F forming a fountain? 



What happens when the jar B is 

 raised to the same height as A ? 



When it is raised higher than A1 



Make a siphon with a piece of glass 

 tubing by bending the tubing in a fish- 

 tail Bunsen burner. Fig. 33. Is it neces- 

 sary to make one arm longer than the 

 other? Why must the siphon be filled 

 with water before it will work? Why will 

 the water stay in the 

 siphon if the finger is 

 placed over the end? 



Self-starting Si- 

 phon. Among the 

 many useful pieces of 

 apparatus which 

 make use of air pressure is the self -starting siphon. 



NXA.TE R, 



FIG. 32. 



FIG. 33: 



FIG. 34. 



Fro. 35. 



