Camiones basculantes (Giant Dump Trucks)

Understanding the concepts of solids, liquids, and gases is central to the early science curriculum. States of Matter uses simple, authentic Spanish text to introduce ELL students to these important concepts. Each book features a strong photo-text match and clear, full-color diagrams to enhance comprehension.

What substance can act like both a solid and a liquid? Slime! Want to find out how to make your own? Just follow the simple steps inside this book

Provides an introduction to the concept of patterns, using examples from the coats and feathers of animals as well as the designs some make.

Hace diecisiete años surgió la idea de crear el primer banco de alimentos en Chile. La motivación era una: evitar la destrucción de bienes que pueden ser usados o consumidos por personas que los necesitan. Pero el camino para lograrlo estuvo lleno de obstáculos, desde una ley que no daba cabida a la donación de alimentos, hasta una sociedad que cerraba los ojos ante el hambre de miles de personas. Hizo falta mucho esfuerzo, dedicación y el compromiso de un grupo de personas que no descansaron ante la convicción de que nada sobra, y que el sueño de acabar con el hambre en Chile es un...

There is a contest at a school to design a new playground. The students use blocks to build their models. As they build, they use three-dimensional shapes. Some students build a train out of blocks for the younger students to play on. Can you guess which three-dimensional shape they use for the train's wheels? Read to find out which design wins.