Everyday mysteries

Electricity powers our televisions and computers. Refrigerators need it to keep our food cold, and toasters need it to make toast. Inside this volume, readers will discover where this important source of energy comes from and more. Accessible text, illustrative photographs, and a detailed diagram help readers learn all about this everyday mystery.

Readers will follow the mail as it goes through the post office and processing plant, where it's prepared for the rest of its journey. The informative text and accompanying photographs in this book bring readers along for the incredible trip. A concluding diagram helps readers summarize what they've read using fun and colorful images.

In the past few decades, light bulb technology has gotten better. Not only have compact fluorescent light bulbs become available and affordable, but federal guidelines have caused incandescent light bulbs to become more efficient, too. Readers learn about both kinds of light bulbs, how they work, and their differences. They'll find an introduction to important science curriculum concepts such as circuits and environmental impact. The main content...

Water is a big part of everyday life. People wash with it, drink it, and run inside when it falls as rain. It also seems to defy the basics of physical science by floating in liquid when frozen as ice. Readers learn exactly why that is through accessible and age-appropriate language, as well as how liquid water becomes ice. Full-color photographs complement the main content, and an illustrated graphic organizer shows this common process step-by-step...