1
2
5Keywords:
flooding
observation
rivers
systems thinking
water cycle
weathering
In this task students compare two photographs of a river with normal flow and a river in flood. They make inferences based on their observations.
5
0
0
2
2
1
6
4
2
4
8
3
8
4
14
5
9
4
7
8
4
6
4
6
4
