Sunlight and moonlight, reflections and rainbows. Light is everywhere you look. But where does it come from? How does it make shadows? Readers will learn the answers to these questions and more through easy-to-read text and vivid photographs. An experiment rounds out the book and provides a hands-on...
ترست بايلوت
منذ 4 أيام
منذ 3 أسابيع