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Preschool science show. Explorers Maya and Ollie visit Nina in her workshop and discover that waterfalls are made from layers of hard and soft rock.

Nina investigates how waterfalls are made with the help of Belle, her hearing neuron.

Explorers Maya and Ollie visit Nina in her workshop and discover that waterfalls are made from layers of hard and soft rock. Next they visit a waterfall in Wales and find out that it was made because the soft rock wears away quicker than hard rock.

First shown: 4:30pm 29 Nov 2013
Available for 26 days Duration 15 mins