¡Todo está hecho de materia! Pero, ¿quées la materia? La materia puede ser sólida, líquida o gaseosa. Estos son los tres estados de la materia. Explains what matter is and discusses its different states.

"In this book, early readers will discover the concept of opposites using hard and soft examples all around them! Using engaging and colorful photographs, simple sentences, and exciting sight words, young readers will enjoy learning about hard and soft things, while practicing their reading skills. This book also includes a page for caregivers and teachers that suggests guiding questions to help aid in reading comprehension."--

"The story of subatomic particles as never told before. Meet Pedro the Proton and Nico the Neutron! This light-hearted scientifically accurate book turns chemistry 101 into a delightful tale of universal friendship!"--

Describes vaious gasses in our atmosphere and their properties.

Simple introduction to matter and properties of matter.

Discusses the three states of matter, how materials shift between them, and the properties of gases, and provides instructions for a science experiment involving evaporation.

Discover the science behind solids, liquids and gases in everyday life.

Presents information about the properties of materials and how scientists observe, measure, and test them.