"Two children learn about four different states of matter (solid, liquid, gas, and plasma) and what happens when matter changes form."--

Illustrates the differences between solids, liquids, and gases. Explains what causes an object to change between solid, liquid, and gas, and how the states of matter affect everyday life. Colorful photographs and diagrams help illustrate each science concept. A chart compares the concepts head-to-head to help solidify readers' grasp of the material. Additional features include a table of contents, a phonetic glossary, an index, and sources for further...

"Bill Gates shares what he's learned in more than a decade of studying climate change and investing in innovations to address the problems, and sets out a vision for how the world can build the tools it needs to get to zero greenhouse gas emissions. Bill Gates explains why he cares so deeply about climate change and what makes him optimistic that the world can avoid the most dire effects of the climate crisis. Gates says, "We can work on a local,...

"Hope Jahren is an award-winning geobiologist, a brilliant writer, and one of the seven billion people with whom we share this earth. The Story of More is her impassioned open letter to humanity as we stand at the crossroads of survival and extinction. Jahren celebrates the long history of our enterprising spirit--which has tamed wild crops, cured diseases, and sent us to the moon--but also shows how that spirit has created excesses that are quickly...

En este libro urgente y necesario Bill Gates propone un plan amplio, práctico --y comprensible-- para conseguir que el mundo llegue a cero emisiones de gases de efecto invernadero para así evitar una catástrofe climática. Bill Gates ha pasado una década investigando las causas y efectos del cambio climático. Con la ayuda de expertos en los campos de la física, la química, la biología, la ingeniería, las ciencias políticas y las finanzas,...