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 Name____________________________ Date____________________________________
 

 1.  What is organic matter?  Give five examples._____________________________________

 2. Good top soil is ______% rock particles, ______% organic matter, ______% water, and 

 3.  How do scientists measure texture?___________________________________________

 4. Sand, silt, and clay are all rock particles.  How are they different?

 5.  Particle size has a lot to do with ________________.
 
 

 6.  Name three important nutrients plants need to get from the soil.

 7. Design an experiment using three sizes of balls, to show how particle size affects the amount