If you have been looking for a fun and engaging novel to connect to your Physical and Earth Science themes, then Pi in the Sky by Wendy Mass is the book you have been searching for! My students love this science fiction novel about Joss, the seventh son of the Supreme Overlord of the Universe, and Annika, a human from Planet Earth, who must work together to find the necessary elements to rebuild the solar system after it is ripped out of the space-time continuum. This complete study guide provides chapter-by-chapter comprehension questions, 40 key concept cards for vocabulary recognition, and a template for conducting a mini-biography on astronomer Carl Sagan. This sci-fi novel study is perfect for literature circles or a class read-aloud. Physical and Earth science concepts addressed in this unit include: the solar system, planets, asteroids, & meteorites; the sun, stars, & supernovas; elements, atoms, & molecules; protons, electrons, & quarks; gravity; matter & energy; light (speed, gamma rays, electromagnetic spectrum), and more. An answer key is included.