By Glen Phelan
Gravity: A Universal Tug-of-War uses real-world experiences to guide students to an understanding of the nature of gravity. Students learn that gravity is a universal force acting between all objects. They discover how gravity holds everything—including us—in place on Earth. They also learn how gravity determines the structure of our solar system and the rest of the Universe—from galaxies like our own Milky Way to clusters of galaxies dotting the vast expanse of space. At the end of each two-page spread, a brief statement called The Bottom Line reinforces students’ understanding by summing up the key ideas about gravity covered in those pages.
Lexile: 820L
ISBN: 978-1-933798-51-6
