Niagara Falls, Victoria Falls, Iguazu Falls, Angel Falls…
Yes, Year 6 have been studying waterfalls!
As part of their topic/geography lessons, Year 6 have been learning all about these natural and wondrous creations. Year 6 enjoyed researching lots of fascinating information about famous waterfalls located throughout the globe; examining beautiful photographs captured by photographers; and indeed sharing their own experiences of them through travel.
This got us thinking about how they come to be. And if you want to know how, expect the following to be relayed to you by any member of Year 6:
- Waterfalls typically form in the upper stages of a river. They occur where a band of hard rock overlies softer rock. Falling water and rock particles erode the soft rock below the waterfall, creating a plunge pool.
- The soft rock continues to be undercut by erosion; and as it deepens an overhang is formed.
- The hard rock overhang above the plunge pool collapses as its weight is no longer supported.
- Erosion continues and the waterfall retreats upstream leaving behind a gorge.
Examine the diagrams below for further reinforcement.
Please check out the outstanding artwork produced by Year 6. Inspired by waterfalls and brought to life via acrylics! A job very well done!
