For young readers who often ask “why?” and “how?”, these subjects are explained in an easy-to-comprehend way, with simple sentences and visual references. There are real pictures of familiarly ques- tioned concepts, such as blue skies or rain- bows, paired with their scientific counterparts, with a breakdown of the colors in an age-appropriate way. The highlight in each title is its visual glossary, which not only helps clarify terms, but also reinforces what was read afterward, to promote discourse. VERDICT These simple science books can fit into classrooms and school libraries for beginner readers full of questions.