EXPERIMENT

Today we did our experiment on land-use/Mudding the water.

1. Prepare two baking trays, one with potting soil and one with turf, as shown in the diagram below.
   
   
   1. Place each one inside a tote tray
      
   2. Prop each tray up at the same angle using props
      
   3. Discuss and predict what will happen when water is added
      
   4. Spray an equivalent amount of water onto each tray. (This represents rain)
      
   5. Wait until the water has collected in the space at the end of the tray (the same
      length of time for each tray).
      
   6. Carefully pour the water which has collected into measuring beakers.
      
   7. Observe immediately after collection and again after twenty minutes. What
      differences do you observe?
      

   Variation:
   

   •   Change the rate at which you add the water (the ‘flow’) e.g. pour the water on, rather than spraying it.
     
   •   Add ‘pollutants’ (powdered milk) to the soil and forested landscapes. Repeat the experiment. (You may need to add to the table below).
     
   •   Compare by observation the amount of pollutants.
     
     
     It turned out good!
     as we started the process was going as expected all the excess water came out from the sand a lot but the turf not as much turf/1/3 of a cup sand /1/2 of a cup.
     by Ellie b ,Matthew s ,Olivia y.