La honestidad

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

Introduces the life and times of Underground Railroad and anti-slavery leader Harriet Tubman and explains her place in American history.

Description Packed with action and full of the vehicles kids love most, Big Movers is tons of fun! Young readers are there as a front loader scoops piles of gravel for a new roadway, a wrecking ball demolishes and old building, and more. A chunky, movable piece on each vehicle makes reading this book an interactive adventure.

An illustrated survey of the history and customs of the native North Americans who were members of hundreds of different tribes with varying lifestyles over the centuries.