Mezclas y soluciones (Mixtures and Solutions)

Hamburg, 1947, a headless body is found in the ruins of a bombed out building. No evidence or identifying clues are left behind. Inspector Frank Stave, a man traumatized by the war, does not have high hopes of solving this case. When another victim is located, Stave knows he has a serial killer on his hands. The investigation that he launches puts his personal safety at risk.

Kids use pencils everyday. Read to find out how a pencil is made. Paired to the fiction title Where is My Eraser?.

"Por medio de prosa simple y dulce, y las ilustaciones vivas, de este tierno libro anima al comportamiento positivo así muestra a los niños que fácil y gratificante es expresar como ser simpatico, apreciado, y amado todos los días."--Fishpond.com.au.

Forces and motion are key concepts in the elementary science curriculum. This Spanish edition of How Simple Machines Work uses simple text and full-color photographs to help ELL students understand the principles behind simple machines. Each volume includes three diagrams to enhance comprehension. The text uses authentic language and is designed to build reading skills as well as knowledge of basic science concepts.