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.
The question of who eats what in a freshwater habitat is answered in this book about food webs.
The animals of the grasslands and savannahs are highlighted in this comprehensive book about food webs.
This book looks at a forest food chain, discussing the plants and animals that are native to this environment, threats to their survival, and what is being done to protect their habitat.
Beautiful photos and text examines the issues endangered Steller Sea lions face and how they can be saved.
Beautiful photos and text examines the issues endangered whooping cranes face and how they can be saved.
Clear definitions supported by every day examples and easy hands-on activities introduce young scientists to wheels.