waterfall
part of speech
noun (a waterfall, waterfalls)
meaning for a pupil
A waterfall is a place where a river or stream flows over the edge of a cliff or steep rock and falls down. tree →
sense in the lessons
In geography lessons pupils learn how waterfalls form: a river flows over hard rock onto softer rock, the soft rock wears away faster, and a step and a plunge pool form; the waterfall slowly moves back upstream. Famous waterfalls include Niagara Falls (Canada/USA), Victoria Falls, Angel Falls (the highest) and many in New Zealand and Australia. In science, falling water can make electricity. Safety: rocks near waterfalls are slippery; stay behind barriers. Phrases: «plunge pool», «the falls».
examples
- We walked to the waterfall in the forest. tree →
- Niagara Falls is on the border of Canada and the USA. tree →
- The waterfall roared as we got closer. tree →
- Angel Falls is the highest waterfall in the world. tree →
- Rocks near a waterfall are slippery. tree →
- The water crashes into a plunge pool. tree →
- A rainbow appeared in the waterfall's spray. tree →
- They lay in wait at the waterfalls up which I leaped like a silver flash. tree →
note
Plural: waterfalls. One word. Names often use «Falls» (plural) for one waterfall: «Niagara Falls is…». Small waterfalls are «cascades».
In the corpora
- Brown bears, including grizzlies, catch salmon at waterfalls in autumn to build up fat before winter.
- Where it pours over a band of hard rock lying on soft rock, the soft rock wears back faster and a waterfall forms.
Trees and pragmatics
Every meaning and example of «waterfall» parsed by Mova, each sentence with its dependency tree and frames.