Sun, Earth, and Moon

Cute graphics make this an attractive presentation for upper elementary classrooms, and multiple choice questions make it interactive as well. There is, however, a lack of coherence. For example, slide #4 addresses the air we breathe, but it is placed between two slides containing facts about planet Earth. Slides 11 and 12 are about the moon, and then the moon is revisited in slides 18 through 21. Perhaps rearranging the order of slides will improve the quality of this presentation.