Jennifer Boothroyd

Helicopters can take off from almost anywhere and change directions quickly. They can even hover. But how do they stay in the air? And how do pilots control these special aircraft? Listen to this book to find out....

A fire alarm’s wail. A cat’s quiet purr. Your ears let you hear all kinds of sounds, both loud and soft. But how do your ears work? And how does your sense of hearing help you? Listen to this audiobook to find out....

Ice cubes clink in a glass. Steam rises from a pot of boiling water. Solids, liquids, and gases are all around you. But what exactly are solids, liquids, and gases? And how do you tell them apart? Listen to this audiobook to find out....

Eating a balanced diet is important. Healthy foods give you energy to learn and play. Do you know what the five food groups are? Or how much food from each group you need to stay healthy? Listen to this book to find out....

Some mammals have a little fur or hair, others have a lot! Learn how fur helps these animals survive....

Parachutes can be used for emergency landings. But they can also be used for flying fun....

All kinds of animals have skin - even humans! Compare the many features of skin....

Compare different types of scales and discover how they protect the bodies of fish and reptiles....

Is it rainy? Cloudy? Stormy? Listeners will learn the ins and outs of observing weather conditions in this book....

Your eyes let you see everything around you. But how do your eyes work? And how does your sense of sight help you? Listen to this audiobook to find out....

Learn how birds use feathers for flight, warmth, camouflage, and much more....

Many insects drink nectar and collect pollen from flowers, and in the process they help plants reproduce....

Electricity is all around you. But where does electricity come from? And how do we bring it into our homes? Listen to this audiobook to find out....

What exactly is a force? And how do forces act on different objects? Listen to this audiobook to find out....

Salty popcorn. Sweet watermelon. Your tongue lets you taste these things and more....

What facial features do you have? Freckles are a common feature. So are turned-up noses and unattached earlobes. What determines your facial features? Listen to this book to find out about how your genes affect your physical features....

What color are your eyes? Brown is the most common color. But some people have blue, green, gray, hazel, or amber eyes. What determines your eye color? Listen to this book to find out about how your genes affect your physical features....

What are tornadoes? Blizzards? Hurricanes? Listeners will learn the ins and outs of severe weather in this book....

Asian elephants and Mexican long-nosed bats are two examples of endangered mammals. Few of them exist in the wild. Other mammals have already gone extinct. What hurts these animals? What can you do to help? Read this book to find out....

Food safety is important. What are some other good food safety rules to follow? And what steps can you take to keep your own kitchen safe? This title provides an educational introduction to key ideas of food safety....