"Vibrant photographs and carefully leveled text introduce young readers to the physics principles that explain the arcing flight of a boomerang. Includes activity, glossary, and index."--

"Colorful photos and carefully leveled text introduce young readers to the physics principles that determine a paper airplane's flight capabilities. Includes activity, glossary, and index."--

"Carefully leveled text and vibrant photographs explore the physics principles that make playground slides so much fun. Includes activity, glossary, and index."--

"Carefully leveled text and vibrant photographs introduce young readers to the physics principles responsible for a trampoline's behavior. Includes infographics, an experiment, glossary, and index."--

"Carefully leveled text and vibrant photographs introduce early fluent readers to the science and engineering behind rockets. Includes infographics, activity, glossary, and index."--