The effect of slope on erosion

This task is about using a model to investigate erosion.
How we set up the equipment in the trial:

diagram of erosion experiment
NOTE: We used 100 × 50 mm timber offcuts, to make the different heights. We used no blocks (for 0 cm), 2 blocks (which is approximately 10 cm), and 4 blocks (which is approximately 20 cm).  

Question 1Change answer

How to do this task:
  • With the equipment you have been given design an investigation to find out how the slope of the land affects the rate of erosion.
  • You can draw diagrams if this will help explain how your investigation will be done.
a)  My plan:
Have your plan checked by your teacher before carrying it out.
 
Checked: [] 

Question 1Change answer

b) What did you find out?