Screws are more than just the tools that hold pieces of wood together. They drill holes, lift cars, and even pump water! Students will learn about the functions of these amazing machines and put their knowledge to use with easy experiments. Diagrams provide visual explanations in this leveled title.
Wedges were some of the first tools humans ever created! Today, these simple machines are found all around, from doorstops to our own front teeth. Diagrams and simple text explain how wedges work, while experiments allow readers test the machines for themselves. Move through the history of wedges, from hand axes to handsaws, in this fascinating title for beginning readers.
Llamas and alpacas can be hard to tell apart. But between face shape and hair length, these human helpers have subtle traits that make them unique! Side-by-side comparisons support simple text and stunning photos to help readers identify these Andean animals.
An ancient, scaly beast slides through the water, searching for a snack. But is it an alligator or a crocodile? This low-level book uses simple text, bright photos, and helpful labels to walk readers through the physical and behavioral differences between these often mixed-up reptiles. Readers can dive in and see if they can tell which is which!
Can you tell if that is a butterfly or a moth fluttering by? Physical traits like antennae and colors give clues, as well as certain behaviors. Leveled text and bright photos walk beginning readers through the differences of these big-winged insects. Side-by-side features let students compare the two on their own and aid in comprehension.
Do you know how many bones are in your body? Get under your skin in this introduction to the skeletal system. Young readers will discover how bones fit together, how they move, and how they protect other parts of the body. Blastoff! Series
This many-legged insect has been around for nearly 400 million years. Creepy crawly centipedes share roots with lobsters, shrimp, and crayfish. Scurry along in this informative title for beginning readers.
Chilling winds rush in through an open doorway. Snow swirls in the air. Winter has arrived! Animals grow thick coats to guard from the frigid temperatures, and people bundle up in parkas and hats. Many trees and plants grow dormant. This title highlights the drastic changes of the Northern Hemisphere during winter.
ATVs can be used for both work and play. Riders have many different models to choose from. Students will learn about the history of ATVs, the technology used in their design and performance, and how they can traverse almost any kind of terrain.
Twenty-five times faster than the speed of sound, rockets are high-speed space delivery machines. Every week, at least one rocket launches into space from somewhere in the world! This title will boost the knowledge of reluctant readers as it breaks down space rockets.
Baby sheep are able to stand and drink their mother's milk within a few minutes of being born. Students will explore the behaviors, characteristics, and growth of these wooly creatures. Blastoff! Series
The Wright Brothers famously made the first flight in Kitty Hawk, North Carolina. But the history of human flight goes back much further! This title details the experimentation and innovation that went into the creation of the airplane. Special features highlight important airplanes as well as pioneers who had a lasting influence on the world of air travel. Buckle up and prepare for takeoff! This exciting title is sure to interest anyone with a love of planes.
The 20th century approaches, and life is about to change forever! Inventors across the world race to invent and innovate automobile designs. Which ones will end up on top? Anyone who has ever ridden in a car will appreciate this fascinating title about how the automobile got its start. Fun facts, a timeline, and inventor and automobile profiles show the importance of this amazing invention!
Smartphones put a camera in just about everyone’s pocket, but it hasn’t always been so easy to take a snapshot. The 18th century brought a new innovation that allowed people to easily preserve a moment in time. That innovation carries on today! Through informative text, fun facts, and special features, this fascinating title explores how the camera was invented and how it continues to develop!
Many consider Thomas Edison the inventor of the light bulb, but this world-changing invention has a long history. Since the 19th century, many have worked to create and improve the light bulb. Starting from the light bulb’s early development all the way up to its modern uses, this informative title will fascinate anyone who wants to know about the invention that lights up the world!
Read all about it! The history of the printing press started centuries ago. Through the years, it has been used to share news, make books more affordable, and make information more accessible. And it still helps people communicate today! This title explores the history of the printing press, from its first use in the 1300s to uses tomorrow and beyond. Readers will use fun facts, profiles, and a timeline to learn all about how this life-changing invention got its start.
Not even a century ago, a computer took up an entire room. Today, a computer can fit inside your pocket! Over decades of technological advancement, the personal computer has shaped the world in ways that are still being determined. This powerful invention has changed everything from the way people communicate to how we entertain ourselves. With a series of fun facts, profiles, and a timeline, this title will fascinate anyone who has ever booted up.
It wasn’t long ago that pesticides threatened a national environmental crisis - until Rachel Carson’s Silent Spring turned the tide. A shy, serious girl, young Rachel became a biologist when few women went to college, and grew up to be one of the most influential scientists and writers of our time. Budding environmentalists will love this biography for early readers!
Uh-oh! A leaky pipe has turned the basement into a flood. Time to call a plumber! These community helpers work on pipes to help keep buildings safe and dry. This informative title introduces readers to plumbers and the tools and skills that they need to do their job!
When confronted by other predators, cheetahs opt for flight over fight. You would, too, if you could run up to 70 miles per hour. Cheetahs make a chase look easy, but hunting can be hard work. Find out how these speed demons of the savannah execute attacks and teach their young how to do the same. Blastoff! Series
Reports of haunted houses go back to ancient Rome. People who claim to have witnessed hauntings tell of strange sounds, objects that move on their own, and ethereal spirits. Readers will learn about the history of hauntings, why skeptics claim they are not real, and how researchers use technology to try and find proof of these unwanted visitors in our homes!
Does a giant sea monster live beneath the surface of Loch Ness in Scotland? Reachers have used cameras, sonar, and other technology in hopes of finding this legendary creature. This title explores the mystery of the Loch Ness Monster, the tools and technology used to search for it, and examines the evidence gathered to date, letting the reader make their own conclusion about the existence of this beast beneath the water.
Creaking doors, gusts of wind, eerie sounds--could these be the signs of ghosts? Ghost hunters have tried for years to prove the existence of ghosts through photos, videos, and sound recordings. This book investigates reports of ghosts, illuminates the tools and technology used to search for ghosts, and leaves the reader wondering whether or not there are spirits among us!
Most sightings of unidentified flying objects can be explained--but not all of them. Those that cannot be are the focus of investigation by UFO researchers. They use video cameras, binoculars, radar, and other technology together with eyewitness accounts to try and identify strange objects in the sky. Students who read this title will find themselves later wondering: what is that strange object in the sky?
About 120,000 pounds of space dust falls to Earth every day. All of this dust comes from asteroids! Asteroids are chunks of rock and metal that orbit around the sun, but some venture near Earth from outside the solar system. Through detailed photos and fact-filled graphics, this title introduces readers to the phenomenon of asteroids.
