"Why do the sun, moon, and stars move across the sky? Why is the sun the only star we see during the day? A class of curious first-graders makes observations an

Answers questions about the world at night, including whether people move in their sleep, whether flowers and trees sleep, why the moon changes shape, and why f

Have you ever watched the sun rise or set? Do you know why the moon changes shape every night? Join Mr. Cruz's class as they observe patterns in the nighttime s

‘Accompanied by NASA photographs and Dorros’s colorful, lively drawings, the text explains the Earth’s rotation in clear and simple terms. An experiment u