Most of us think that kids draw the Earth flat based on their observations. However, they might draw a flat Earth because it’s easier.
Researchers asked 62 children between the ages of 5 and 10 to put pictures of the Earth in order of how much it looked like the actual Earth.
All of the children consistently ranked the spherical depiction of the Earth as the most realistic.
Nobes, G., Martin, A.E. & Panagiotaki, G. (2005). The development of scientific knowledge of the Earth. British Journal of Developmental Psychology, 23, 47-66