The basics of measurement are an important part of the science and mathematics curriculum for students and readers. This volume is a simple and straightforward guide to measurements, including a history on how measurements were formed and have been standardized and basics on measuring distance, weight, temperature, volume, time, and more, along with information on the metric and imperial systems. Chapters contain vocabulary words and simple exercises...

This simple guide to the sun and stars will engage readers with the fundamentals of astronomy, detailing how the heavenly bodies affect one another and how they ultimately affect us. The material covers basic science curriculum for this reading level, making it an important supplement for students who want to study independently, teachers who want to provide supplemental materials, or readers who simply want to know more about the universe. The accessible...

Get the facts on an array of aquatic creatures and discover the unexpected ways humans and fish are similar in Just Like Us! Fish. Appealing mix of photographs and cartoon illustrations. What animal uses stilts, has roommates, finds safety in numbers, and even gets skin treatments at the spa? FISH! While they might seem as different from humans as animals can possibly be, we actually have a lot in common with our underwater neighbors. From hunting...

Get the facts on one of nature's most remarkable insects and discover the unexpected ways humans and ants are similar in Just Like Us! Ants. Appealing mix of photographs and cartoon illustrations. What animal farms, builds roads, constructs rafts, and even babysits its younger siblings? ANTS! While they might seem as different from humans as animals can possibly be, we actually have a lot in common with these creepy, crawly insects. From their families...

A girl travels to the Gobi Desert, joins a group of photographers who are studying wild camels, and learns how camels have adapted to the desert and how they behave in the wild. Includes range map, glossary, and further resources.

Get the facts on an array of leafy organisms and discover the unexpected ways humans and plants are alike in Just Like Us! Plants. Appealing mix of photographs and cartoon illustrations. What living things wear perfume, bask in the sun, use weapons to defend themselves, and even go on ocean cruises? PLANTS! While they might seem as different from humans as possible, we actually have a lot in common with our photosynthesizing friends. From drinking...

"In The Spider Silk Scientists, readers enter Randy Lewis' lab where they come face to face with golden orb weaver spiders and genetically engineered goats, whose milk contains the proteins to spin spider silk--and to weave a nearly indestructible fiber. Learn how this amazing material might someday be used to repair or replace human ligaments and bones, improve body armor, strenghten parachute rope, and even tether an airplane to an aircraft carrier!...

Congratulations, insect parents-to-be! You're about to meet your squirmy, wormy bundles of joy. They're called larvae. Read this book to find out where to lay your eggs, how many babies to expect, what they'll eat, and how to keep them safe from harm. Whether you're a butterfly or a bee, a moth or a fly, a beetle or even a bloodsucking mosquito, you'll find answers to all your parenting questions here.

A girl visits Yellowstone National Park and observes a wolf pack's behavior in the wild. Includes range map, glossary, and further resources.

A child watching a garbage truck pick up the trash wonders where it goes, and the story follows two garbage bags as they travel to a transfer station and then to a landfill. Includes "Recycle it Yourself" activity and further resources.