Eleanor Stackhouse Atkinson,
The How and Why Library — Wonders of the World We Live On
(1915)
“ It is very wonderful how quickly a child catches an idea. In his play, he reproduces big things on a small scale. He can make a satisfactory rain with a watering pot, so he will understand the vapor cloud made by a boiling tea-kettle. Most, if not all, of the properties of earth, air and water, can be made plain to a child by just such simple means always near at hand. Air is really no more difficult than the other two. The child already knows temperature, and wind, or air in motion. The little hot-air balloon and the flying bird are among his earliest objects of wonder. ”
