Today, we had a fantastic time when Howie Pitman, the Dean Park Ranger came to talk to us about Dams, Flooding and creatures we might find in the River Afton.

Here are some pictures of the experiment we carried out measuring which material; big rocks, small rocks or sand was the best to hold back water. We talked about giving some advice to the men building the  flood defences at the river just now :0

Here was the time it took the water to go through the big black rocks…

the small rocks..

the sand…

and then the sock i.e. makeshift sandbag…