Cold weather

The cold weather gave us lots of learning opportunities. We measured the temperature and discussed the negative numbers.

Icy spot tray.
Fern frost on the window. Called fern frost, because the it looks like the leaves of a plant.
We read about dew and frost and how it is formed. Frost is formed when the temperature of the ground goes below zero, which has happened lots this winter,
A patch of disturbed snow, with no footprints around. We tried to work out how this had happened. Was it a mole trying to get out from underground? or a bird?
Our bug hotel.