This book explores how human activity affects the Earth, e.g. the effects of human activity on groundwater and surface water, habitat destruction, construction, emissions, and pollution.
This book discusses how the Earth rotates on its axis, causing day and night, and revolves around the Sun, causing changes in season and weather occurrences.
This book takes a look at animal and human cells, and the internal structures that allow them to obtain energy, get rid of wastes, and grow and reproduce.
Discover the processes that form everything from the smallest pebbles to the highest mountains.
A taste of sunshine! Take a look at the fascinating ways the Sun is involved in food production.
An overview of the tools used in various fields of science from microscopes to telescopes.
This book explores the science behind modern technology: TV, radio, Internet, cell phones/mobile devices, Earth to space communication, satellites, and GPS. It also expands students' understanding of light and sound as mechanisms of energy transfer and transfer of information between objects that are not in contact. In additional it also covers scientists and discoveries that led to modern technology.
This book explores Earth's role and place in the Universe, and discusses origin theories for the planets in our solar system. It also talks about light waves, light years, and measuring distances and sizes as well as the components of the universe (stars, nebulae, and galaxies) and their relation to Earth. It also discusses the characteristics that allow life to exist such as the proximity of the Sun, the presence of water, and the composition of the atmosphere.
This book explores the organisms involved in composting as well as the biological processes involved, including a breakdown of primary, secondary, and tertiary level consumers.
This book explores the states of matter, the building blocks of everything in the universe, as well as influential scientists in the field.
This book explored how objects store and exert energy.
How much power is in poop? Discover the biofuel technology that turns human and animal waste into energy for everything from cooking to powering up entire buildings.
Research project and fun science experiments are shown in this science encyclopedia.
Take an in-depth look at mathematics in this science encyclopedia.
Take an in-depth look at physics in this science encyclopedia.
Take an in-depth look at technology in this science encyclopedia.
Take an in-depth look at astronomy and space in this science encyclopedia.
Take an in-depth look at earth science in this encyclopedia.
Take an in-depth look at human life in this science encyclopedia.
Take an in-depth look at chemistry in this science encyclopedia.
Have you ever seen an empty lot and wondered what it would take to build something on it? Well, this book describes the step-by-step process of everyone involved. From the architect, who designs the plans, to the contractor who oversees the work of the carpenters, plumber, electrician, concrete mason, and finally, the landscape architect who puts the finishing touches on the outside of the building! Photographs with captions, informational sidebars, and simple to understand text helps kids sequence and order events. This title will allow students to distinguish between information provided by pictures or other illustrations and information provided by the words in a text.
Where do bicycles come from? Bicycles don't grow on trees or in the ground, they are created with the help of many people. From the designer who draws out the bike plans, to the assembly worker who puts the parts together, to the shop owner who sells the bike. There are many steps in place to make sure you get a well-constructed bicycle to ride. Filled with photographs with captions, informational sidebars, and simple, sequenced text, children with see the importance of each step of the process. This title allows students to describe the relationship between the illustrations and the text.
Do you know the journey food takes to get onto your plate? A French fry isn't grown, its made! It starts on a farm as a potato and then many hands help move it along to become the French fry on your plate. Explore all the helpers along the way such as the farmer tending the crop, workers at the processing plant, the delivery driver, and the chef. Sequenced text, real photographs, and informational sidebars provide an engaging text for children to understand the world around them. This title allows students to describe the relationship between the illustrations and the text.
Ever wonder what is going to happen to that car broke down on the road? Well, this book explains the trip that car will take to recovery. From the tow truck driver, who tows the car, to the mechanic, who diagnosis the work that needs to be done. Photographs and informational sidebars explain all the different jobs needed to fix a single car. This title will allow students to describe the connection between two individuals, events, ideas, or pieces of information in a text.
En este libro se explica para qué le sirve a distintas especies animales el tener en sus cuerpos arrugas, verrugas y colgajos.