At the same time, the tree seals the cut, so that when the leaf is finally blown off by the wind or falls from its own weight, it leaves behind a leaf scar. Most of the broad-leaved trees in the North ...

The broad and convex structure of these wings helped the seeds to fly in the wind. The research notes that three-winged seeds ...

Warm up: travelling steps in slow motion as if walking against the wind. Travelling in unison ... to find shelter from the rain. Autumn leaves: class divided as four groups standing in circles ...