🔬 Science

The birch and the spruce through autumn

A birch and a spruce stand side by side. Drag the slider from September to January and see who drops its leaves, and who stays green in the snow.

January Who is still green in January? 12 fallen needles January: the birch has no leaves left. The spruce stands green in the snow.
SepJan

January: the birch has no leaves left. The spruce stands green in the snow.

Spruce: narrow, waxy needles
Birch leaves turning yellow and falling
Old spruce needles, a few at a time
Frost and snow
1Feel the needle and the leaf
2Drip water on both and watch the beads
3Put them on a plate in a warm room
4See which dries first over four days