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Our muscular system covers our bodies from head to toe. It helps keep us upright and gives us the power to stand, sit, run, smile, and more. Did you know that your muscles make up one-third of your body weight? Or that your tongue is made up of eight separate muscles? Learn all this and more in Muscular System"--

Discover the main systems of our amazing human body with this new series of books!Our respiratory system is responsible for cleaning the air that we breathe, supplying our bodies with oxygen, and getting rid of carbon dioxide. Did you know that you breathe in and out about 22, 000 times a day? Or that your left lung is slightly smaller than your right? That leaves room in your chest for your heart! Learn all this and more in Respiratory System...

Our respiratory system is responsible for cleaning the air that we breathe, supplying our bodies with oxygen, and getting rid of carbon dioxide. Did you know that you breathe in and out about 22, 000 times a day? Or that your left lung is slightly smaller than your right? That leaves room in your chest for your heart! Learn all this and more in Respiratory System"--

Discover the main systems of our amazing human body with this new series of books!The blood that flows through your body constantly brings food and oxygen to your muscles, organs, and bones and carries away waste. And it is all powered by that magnificent muscle, your heart. Did you know that your heart beats about 100, 000 times a day? Or that the blood in your body travels a total of 12, 000 miles daily? That's more than four times the width...

The blood that flows through your body constantly brings food and oxygen to your muscles, organs, and bones and carries away waste. And it is all powered by that magnificent muscle, your heart. Did you know that your heart beats about 100, 000 times a day? Or that the blood in your body travels a total of 12, 000 miles daily? That's more than four times the width of the United States from coast to coast! Learn all this and more in Circulatory ...

Envision a brighter future with this STEM-based subset of True Books.We use a lot of energy to power our lives - from our homes and cars to our tablets and handheld games. The challenge facing us today is finding sustainable energy methods that will ensure a green future. There are seven different types of green energy - and they are the only types that don't pollute our Earth. We have learned how to harness the power of the sun, wind, water, ...

Envision a brighter future with this STEM-based subset of True Books.Thanks to the development of agriculture, our Earth can feed the almost 8 billion people that call it home. But the challenge facing us today is how to make the practice of large-scale farming sustainable. We have learned how to use alternative energies - like solar and wind power - to run our farms. We have also learned how to use the land and the animals on it in a more env...

Discover the main systems of our amazing human body with this new series of books!Our muscular system covers our bodies from head to toe. It helps keep us upright and gives us the power to stand, sit, run, smile, and more. Did you know that your muscles make up one-third of your body weight? Or that your tongue is made up of eight separate muscles? Learn all this and more in Muscular System.ABOUT THE SERIES: The human body is a complex--and re...

Envision a brighter future with this STEM-based subset of True Books.Small changes over the years - from smarter light bulbs to energy-efficient appliances - have made our homes more environmentally friendly. In recent years we have learned how to make alternative energies and Earth-friendly building methods and materials a reality. Today we understand how to build green homes - dwellings that have zero negative impact on the environment. Gree...

Envision a brighter future with this STEM-based subset of True Books.Small changes over the years - from smarter light bulbs to energy-efficient appliances - have made our homes more environmentally friendly. In recent years we have learned how to make alternative energies and Earth-friendly building methods and materials a reality. Today we understand how to build green homes - dwellings that have zero negative impact on the environment. Gree...

Envision a brighter future with this STEM-based subset of True Books.Electric cars. Solar-powered planes. Poop-fueled trucks. Each of these technological advances in transportation is bringing us ever closer to a green future, and more are being developed all the time. Considering how many vehicles are on our roads - and in the water and air - sustainable transportation might be the most important innovation we can make to ensure our planet's ...

Envision a brighter future with this STEM-based subset of True Books.Electric cars. Solar-powered planes. Poop-fueled trucks. Each of these technological advances in transportation is bringing us ever closer to a green future, and more are being developed all the time. Considering how many vehicles are on our roads - and in the water and air - sustainable transportation might be the most important innovation we can make to ensure our planet's ...

How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The rainforest is always hot and wet. During the day, the tops of the trees receive the light of the sun. At night, everything turns dark. How does this change affect the creatures that live there? What do animals such as lemurs, jaguars, and snakes do as the day goes by? Learn about the rainforest habitat while you follow its daily cyc...

Learn all about positive behavior and meet your best self!"I can be kind by saying 'Thank you' for breakfast. I can be kind by asking someone who is alone if they'd like to sit with me at lunch."This is Alina, and she wants to share with you what it means for her to be kind. You will see that, when she chooses kindness, it spreads everywhere!ABOUT THE SERIES: Learning social skills is a key element of early childhood development and in helping...

How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The desert is a dry place with little rain. Days can be very hot, while nights can be extremely cold. How does this affect the creatures that live there? What do animals such as meerkats, camels, and lizards do as they day goes by? Learn about the desert habitat while you follow its daily cycle in this beautiful book!ABOUT THE SERIES: H...

How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The ocean can be bright and warm or dark and cold. During the day, the sunlight heats the water surface. At night, everything turns dark. How does this change affect the creatures that live there? What do animals such as sharks, turtles, and whales do as the day goes by? Learn about the ocean habitat while you follow its daily cycle in ...

Learn all about positive behavior and meet your best self!"I can be brave when I try a new vegetable, like eggplant. I can be brave by telling the truth, even if I might get in trouble."This is Bob, and he wants to share with you what it means for him to be brave. You will see that, when he works hard to be brave, he feels big and strong. It's hissuperpower!ABOUT THE SERIES: Learning social skills is a key element of early childhood developmen...

Let's learn all about newly discovered animals!Have you ever seen a glass frog or a pumpkin toadlet? Now you can! With amazing photos and lively text, this book explores five new species of amphibians. Get ready to learn all about how, when, and where these animals were discovered!ABOUT THE SERIES: Did you know scientists discover thousands of new species every year? Some are even named after things in popular culture like the Wakanda fish (Bl...

Learn all about positive behavior and meet your best self!"Today, our class is going to the zoo! We each have a buddy. My buddy has a broken leg, so it's my job to help him."This is Hikaru, and he wants to share with you what it means for him to be a good friend. You will see that, when he chooses being a good friend, friendship grows!ABOUT THE SERIES: Learning social skills is a key element of early childhood development and in helping kids d...

Let's learn all about newly discovered animals!Have you ever seen a Wakanda fish or a blue snailfish? Now you can! With amazing photos and lively text, this book explores five new species of fish. Get ready to learn all about how, when, and where these animals were discovered!ABOUT THE SERIES: Did you know scientists discover thousands of new species every year? Some are even named after things in popular culture like the Wakanda fish (Black P...