Presents information about various aspects of our planet in answer to such questions as "Why do stars twinkle," "Why are there mountains," and "Why do earthquakes happen?"
Presents information about various kinds of foods by answering such questions as: "Why does ice cream melt," "Why is fruit good for me," and "Why do onions make me cry?"
Explores the subject of disabilities through questions and answers, such as "Why does my friend wear a hearing aid," "Why do some people read with their fingers," and "Why do some buildings have ramps as well as stairs?"