From the series The World of Physics
Space & Time
Reading Level Grades 6-7Interest Level Grades 5 – 8Copyright 2025
From the series The World of Physics
Reading Level Grades 6-7Interest Level Grades 5 – 8Copyright 2025
From black holes and dark matter to multiple theories of time, scientists have discovered many mysterious forces in the universe. Learn how the universe began, why planets orbit stars, and how gravity can make things move faster or slower. Meet the great thinkers and scientists who have studied where our universe came from and where it’s going. Extraordinary photos and real-world examples invite readers to discover the world of physics, while final comprehension questions engage them to check what they have learned.
