A sense of wonder and the need to predict -- these are two of the qualities that enrich all of us. We wonder about big things (is there life on other planets?), smaller things (if I write to a friend that I've had a falling out with, will I get an answer?), and smaller yet (what will happen if I marinate my chicken in beer?). Not only is it fun to predict, but prediction is also a strong part of being safe (if the pot recently boiled, I should probably grab it by the insulated handle). The lure of prediction can be easily seen in fantasy football, which has almost replaced the actual games in energy and excitement for many fans.
These two qualities, wonder and prediction, can form the basis of making lessons motivating and full of learning.