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Scientists have long debated the relationship between birds and reptiles. After all, there are some physical similarities between the species, from the eggs they both lay to the scales that can be found on their bodies. But what about the differences? Birds have feathers and are warm-blooded. Reptiles slither, crawl, and creep and are cold-blooded. Scientists study these similarities and differences by observing and experimenting, and now you can too. Whether you try the experiments and activities in this book for fun or for a science fair project, you’ll get an up-close and personal view of these two incredible types of animals. Are they related? You be the judge!
Mammals have spread to almost every habitat on the planet and can be found on land, in the sea, and in the air. What do these animals have in common with each other and us? How do they adapt to their environments? Which mammals live near you? Scientists answer such questions through observation and experimentation—and so can you. You can create a system to classify mammal groups, compare and contrast other mammals’ body systems with your own, discover how mammals overcome seasonal challenges such as snow, set up an observation station to watch the mammals in your neighborhood, and conduct a scientific census to determine their numbers. Whether for a school science fair or just for fun, these projects will help you better understand the diverse, magnificent creatures that are our closest relatives in the animal kingdom.
From ancient times, people have wanted to learn about the sky. The stars, planets, and other heavenly bodies have been observed for centuries, and theories have changed as the equipment used has improved. Though we now know that the Sun is the center of our solar system, and planets and other objects move around it, we still have a lot to learn. What is a comet made of? Why is Pluto now called a dwarf planet? What causes a solar eclipse? A lunar eclipse? This book will help you answer these questions and more. Whether you try the experiments and activities in this book for fun or for a school project, you’ll discover why so many people are fascinated by our solar system.
Book has remarkable close-up photos of 100 mammals, birds, reptiles, amphibians and insects found east of the Great Plains in North America with information about habitat, appearance, behavior and also a CD recording of commons songs, calls, or other sounds for each.
Provides basic information about the biology, life cycles, and behavior of birds, along with brief profiles of each of the eighty bird families in North America.
Babies crying, school bells ringing, cars roaring by, the ding signaling that a new text message has arrived . . . sounds are all around us, but how are they made? And how do we hear them? Sounds are created when air vibrates, and we hear them because our ears are specially developed to funnel in and process those vibrations. Through the activities and experiments in this book, you’ll take a hands-on look at how sounds are made and how they are heard. From salt drums to xylophones and sonic booms, you’ll have fun making music and noise—and learning a little along the way!
What do CDs, lamps, lasers, and microwave ovens all have in common? They all use the power of light and optics! From ancient times when scientists puzzled over the effects of the Sun on Earth to today, where scientists and engineers use lasers to make precise cuts in metal, people have been fascinated by light and optics. In this book, you’ll delve into this incredible subject and learn how light can bend and bounce. You’ll understand how scientists use light to send data from one side of the world to the other. And, you’ll have fun discovering new things to do with flashlights and mirrors. These experiments and activities can be used as a starting point for science fair projects, or you can do them just for fun. Either way, you’ll find out a lot about the properties of light!
Scientists have known for a long time that things move in predictable patterns. It took an apple falling to help further their knowledge, though. We now know how things move and why. Scientists continue to study motion and the forces that cause it, and you can too! In this book, you’ll learn about pushes and pulls and different types of energy. The next time you play soccer, you’ll be able to use your new scientific knowledge to teach your friends and family why that soccer ball moves the way it does.
Electrical and magnetic forces are so much a part of our everyday lives, that we don’t often think about how they work or how they are related. Before digital music players and eBook readers were commonplace, though, scientists put a lot of effort into discovering just what these forces were and how to harness their energy in ways that would make life easier. Through their experimentation, they discovered the connection between electrical and magnetic forces. They found ways to bring electricity to people who wanted it. Today, we benefit from these discoveries, but there are always new things to discover! Whether you try the experiments and activities in this book for fun or for a science fair project, you’ll get an up-close look at the forces of electricity and magnetism. Enjoy each of the shocking activities in this book as you discover the pull of science!
What do sponges, worms, and mollusks have in common? They’re all simple animals. They are also unique, cool, slimy, fun, and (sometimes) creepy! There are hundreds of thousands of different species within these three groups of animals. From the color-changing cuttlefish to foot-long parasitic worms that infect humans and grow underneath their skin, from the colorful underwater sponge to the banana slug, sponges, worms, and mollusks are fun to learn about. In this book, you’ll explore these diverse groups of animals through hands-on activities, projects, and experiments. Whether you try the projects for fun or for a science fair, you’ll get an up-close and personal view of leeches, earthworms, snails, and more.