When the cold wind blows,

Look out for your nose.

Wednesday

Talk about how we are protected from cold, by clothing and by artificial heat. How is the school-room warmed? How are the children’s homes warmed? Why is it unnecessary for stables to be heated?

Thursday

A riddle for the children to guess:

I am as black, as black can be,

But yet I shine.

My home was deep within the earth,

In a dark mine.