Informational (nonfiction), 1,631 words, Level V (Grade 4), Lexile 970L
Readers learn about Earth's most necessary star, the Sun. This informative book explains where the Sun gets its energy, how long it will last, what will happen to Earth when the Sun dies, and what scientists are doing to better understand this magnificent power source. Two science experiments are included for students to try on their own. Photos and diagrams support the text.