The quirky picture book How to Dig a Hole to the Other Side of the World by Faith McNulty (illustrated by Marc Simont; Harper Collins, 1990). This quirky book shares the (obviously) fictional story of a child who succeeds in digging through the Earth. The sites he sees on the way down are helpful for putting the layers of the Earth in context: fossils, increasing varieties of rock, natural resources like oil, water and geysers, volcanoes, and the ocean floor (on the other side of the world).
Marc Simont’s classic illustration style is so much fun and the book is sure to keep the attention of the child’s listener because of the unusual and amusing setting.