Book excerpt: Oscar is a curious kitten! As Oscar the kitten watches the sun set one evening, he has lots of questions about light and dark. Who better than Moth to help out? Moth shows how sources of light are as different as the sun, stars, fireflies, streetlights, and airplanes, and also explains how shadows are made and why darkness comes at night. Includes lesson summaries! Back matter includes an index and supplemental activities.