I bought this book for my grandson who just started second grade. He said science was his least favorite subject. He was reading the book by himself when I visited. He loves to read and he likes the book.

The concept of day and night is discussed in grades 2 and 3. This book is a great supplemental text to help increase children's understanding of this concept. Great text and pictures.

If your child is interested in science, they will enjoy this book. It combines colorful drawings with actual photographs to explane the earth's rotation in a simple, understandable way. It is also a part of the Harcourt reading series for second grade, and a wonderful addition to your home library.