Frost, Helen

An introduction to sabertooth cats, explaining what they looked like, how they lived, and when they became extinct. Presented in English and Spanish.

An introduction to stegosaurus dinosaurs, explaining what they looked like, how they lived, and when they became extinct. Presented in English and Spanish.

An introduction to the life and accomplishments of the African American civil rights attorney who became a prominent Supreme Court Justice.

Defines a screw and shows how it is used in everyday life.

Presents, in English and Spanish text, an introduction to the Tyrannosaurus rex, a dinosaur that existed on Earth about seventy million years ago, describing its appearance, behaviors, and where it lived.

Presidents' Day is a day to honor U.S. presidents. Find out other interesting facts about Presidents' Day inside this book.

Collects simple discussions, with photographs, about water, covering how it is cleaned, its various states, the water cycle, and its importance to life.

Simple poetic language and close-up photographs invite readers to explore all the baby animals who are born during spring.

Examines nature through lyrical text and close-up photography.

Lyrical text and close-up photographs invite readers to explore all the baby animals that are born in the spring.