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There are many forces that make the world work. Gravity keeps our feet firmly on the ground while friction helps us move. The forces of air and water resistance influence how airplanes and boats both move. These invisible forces can be difficult for young learners to follow... Read Full Overview

There are many forces that make the world work. Gravity keeps our feet firmly on the ground while friction helps us move. The forces of air and water resistance influence how airplanes and boats both move. These invisible forces can be difficult for young learners to follow... Read Full Overview

What holds our feet to the ground? How does friction work? When could you use a lever? Imagine if a monster named Mo was able to answer these questions for young readers In this book, Mo does Readers adventure into the wild with Mo and friends to learn about the forces in the... Read Full Overview