Clear definitions supported by everyday examples and easy hands-on activities introduce young scientists to wedges.
Clear definitions supported by everyday examples and easy hands-on activities introduce young scientists to inclined planes.
Clear definitions supported by everyday examples and easy hands-on activities introduce young scientists to levers.
Clear definitions supported by everyday examples and easy hands-on activities introduce young scientists to pulleys
This book explains how models help us test new designs and to understand living things. The book includes various types of models, such as scale, graphical, conceptual, and computer models, which are used to analyze how we understand different things.
This book explains the various methods of scientific tools, including measurement, models, and tools that extend our senses, and how these scientific tools are changing.
This book provides an understanding of the impact that humans have on Earth and suggests ways to reduce damage to the environment.
This book examines the natural forces that create and shape rocks, minerals, and soil and explains how they are an influence to how Earth changes throughout time.
This book describes the importance of wetland areas to Earth's ecosystem and discusses threats against areas such as the Everglades and the Arcata Marsh and Wildlife Sanctuary, along with the efforts to restore and protect wetland areas.
This book offers a brief overview of the structure, function, makeup, and specific types of cells, including both animal and human cells.
Learn about the different types of bridges, the civilizations and people who engineered and risked their lives to construct them, and the advances in bridge building that have made them safe.
In Nuclear Meltdowns, readers will learn how nuclear power works, the dangerous work involved, and the systems put in place to protect the public. This title will allow students to track historical facts and future improvements while gauging their understanding with a variety of reading comprehension tools.
This introduction to cooking discusses the many ways math is used when working with food.
This book discusses notable construction projects, the techniques used to build them, and related math concepts.
Readers will be introduced to an important stage in history when they read Building The Erie Canal. This book is filled with photographs, interesting facts, discussion questions, and more, to effectively engage young learners in such a significant re-telling of events.
Readers will be introduced to an important stage in history when they read America Enters The Industrial Revolution. This book is filled with photographs, interesting facts, discussion questions, and more, to effectively engage young learners in such a significant re-telling of events.
En el libro se explica cómo se puede vivir en casas amigables con el medio ambiente.
Explores electricity from the power plant to your home. Includes how electricity is made, circuits, how we use electricity, and the effects our changing world and weather have on how it works.
Explores elements and atoms, the rows and columns of the periodic table of elements, metals and nonmetals, and how elements form compounds.
Discusses things that rot and break down and things that don't. Investigates how decomposing things may feed insects or animals and help the soil. Discusses recycling.
Discusses solids, liquids and gases as well as the changing states of matter, water, weather, and evaporation.
Introduces atoms and molecules, talks about the elements, bonding and reacting, as well as matter and materials.
Discusses how plants use sunlight, water and soil for food, and how the plant transports food as well as plant reproduction, seeds, and survival.
Defines geology and discusses Earth's layers, soil, plate tectonics, types of rocks and the rock cycle, and land formations.
Explores energy, how we use it, different types and forms of energy, conservation and transformation, renewables vs. non-renewable, and energy conservation.
