¿Qué hace a una familia?

Different types of birds eat different things to live. Some birds eat worms. Some eat fish. Find out what different birds need to eat to live. Paired to the fiction title Hungry For Worms.

People all over the world love pets. Some pets are popular in certain areas of the world. Let’s find out about the popular pets around the world. Paired to the fiction title The Perfect Pet.

The first Thanksgiving was a celebration. The pilgrims were thankful for the harvest they planted. Find out what the pilgrims ate for the first Thanksgiving. Paired to the fiction title A Year of Fun.

It takes different parts to build a house. The floor is built first. Walls need to be added next. Windows and doors, too. Learn about the steps it takes to build a house. Paired to the fiction title We Have a Box.

In an online world where the amount of information seems to increase exponentially even week to week, student researchers can find it an ever-greater challenge to distinguish credible, vetted content from hearsay and misinformation. This book on citing internet sources will help them determine which online sources are trustworthy and which are not. Its lively and engaging instructional tips will help readers successfully negotiate the vast landscape of information out there. They will produce quality research for papers now and beyond in their academic careers with skill and confidence.

Libro para adquirir el fundamento de los mecanismos teórico-prácticos de los equilibrios químicos que tienen lugar en disoluciones acuosas. Se inicia con una presentación de los compuestos químicos, de las reacciones químicas y las ecuaciones químicas con los conceptos estequiométricos necesarios para exponer la disociación electrolítica, sus consecuencias y las diversas formas químicas de cuantificar los compuestos en estado puro y en disolución, teniendo en cuenta su disociación y con la utilización de cifras significativas, explicando una estadística básica para la...

En esta impactante continuación de Aire encantado, su galardonado libro de memorias, Margarita Engle, ganadora del premio de honor de Newbery, recrea sus años de adolescencia durante la turbulenta década de 1960. La infancia de Margarita Engle era un vaivén entre dos mundos: la exuberante y acogedora isla de Cuba y la solitaria realidad de un Los Ángeles lleno de sueños. Pero la revolución ha transformado a Cuba en un misterio de imposibilidad, algo que ya no está disponible en la vida real. Margarita anhela viajar por el mundo, pero antes de que pueda hacerse independiente, tendrá...

Winter, spring, summer, and fall — what causes them? Let's explore Earth's four seasons to find out! The Mi Mundo (My World) series is perfect for young learners in prekindergarten through grade 2. These 16-page books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.