Appendix 



131 



25. In what way do dead leaves get carried into the soil ? 



26. Can you find the worm holes in a garden lawn ? in a 

 garden path? 



27. Take a flower bed or gi-ass plot of small but known area 

 (say 3 yards by 2 yards) and a watering can of known capacity (say 

 3 gallons). Find how much water must be added to the soil before 

 some of the water will remain on the surface. What has been the 

 capacity of the soil in gallons per square yard ? 



28. Take two thermometers. Lay one on the soil, the other 

 with its bulb 3 inches deep in the soil Compare their temperatures 

 at morning, noon and night 



29. Find from the 25-inch Ordnance map the reference numbers 

 of the fields near your school. Make a list of the fields, showing for 

 what crop or purpose each field is being used. 



