Recently we made a grave error: we decided to indulge some childhood memories by showing our kids an episode of Reading Rainbow. We watched a nice little segment about the Magic School Bus traveling inside the earth. The next day Jake announced a plan to dig to the other side of the earth.
I got out the globe and showed him that digging to the other side of the earth would land him in the middle of the ocean. He remained undeterred.
I asked if he would like to check out a library book on what is in the center of the earth. He agreed.
"I'll start in our yard and dig out some weeds since you don't like them," he explained.