Describes what are meteorites, and where do they come from?

Everyone loves chocolate, right? But how many people actually know where chocolate comes from? How it's made? Or that monkeys do their part to help this delicious sweet exist? This delectable dessert comes from cocoa beans, which grow on cocoa trees in tropical rain forests. But those trees couldn't survive without the help of a menagerie of rain forest critters: a pollen-sucking midge, an aphid-munching anole lizard, brain-eating coffin fly maggots-they...

Your mouth contains more bacteria than a dog's. Money is covered with germs that can make you sick. The germs in a sneeze travel only an arm's length. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven through research? Let's investigate seventeen statements about the microscopic world and find out which ones are right, which ones are wrong, and which ones stump even the experts! Find out whether...

Do your readers know that an alligator snapping turtle uses its tongue to get food? Or that a cow uses its tongue to clean its nose? Readers learn how animals use their tongues to get food and scare enemies.

Everyone knows about animals that hibernate in the winter. But it's time to discover animals that sleep all summer long! All science classrooms discuss animals that hibernate during winter months, but few know about animals that estivate-a prolonged sleep during hot or dry periods. Dual layers of text awaken readers to the reasons estivating animals become dormant-whether it's because warm weather threatens food supply or to avoid increased body...

How are polar bears related to pandas? For thousands of years, philosophers and scientists have tried to organize and understand, or classify, the relationships among Earth's animals and plants. Early classification systems were cumbersome and inconsistent. In the late 1720s, Carl Linnaeus began developing a classification system to describe relationships among all living things, including animals, plants, fungi, and bacteria. This organization, called...

Who knew so many animals were blue? This colorful exploration lets new readers practice their colors with vibrant photographs and simple text.

Did you know that a tiny golf ball-sized creature called the blue-ringed octopus contains enough venom to kill 26 adult humans? Or why the Sydney funnel web spider is one of the most dangerous creatures in the world? In this Level 3 book, kids will be fascinated by 12 species that you hope you'll never come across! Sharks, snakes, jellyfish and more-these creatures are among the most threatening-and interesting-in the world!

Did your readers know that a spider monkey can use its tail like an extra hand? Or that squirrels use their tails for balance? Author Melissa Stewart explores how animals use their tails to move, balance, and stay safe.

Discover the coolest robots of today and tomorrow in this colorful, photo-packed book. In this inviting and entertaining format, kids will learn about the science behind these amazing machines. This Level 3 reader is written in an easy-to-grasp style to encourage the scientists of tomorrow!