Read about the things in our incredible world--landmarks, habitats and wildlife from the seven continents, dry deserts, huge oceans, mighty mountains, and much more. Then see if you can answer questions, such as: Which country is made up of over 6,000 islands? How many languages are spoken on Earth? What is the deadliest large land animal?

Read about the different kinds of dinosaurs and other prehistoric creatures that lived long ago. Find out how they lived and died, how only their fossils remain, and much more. Then see if you can answer questions, such as: Why did the dinosaurs become extinct? Which dinosaur had the smallest brain? What can we learn from dinosaur footprints?

Read about the different kinds of dinosaurs and other prehistoric creatures that lived long ago. Find out how they lived and died, how only their fossils remain, and much more. Then see if you can answer questions, such as: Why did the dinosaurs become extinct? Which dinosaur had the smallest brain? What can we learn from dinosaur footprints?

Read all about science--super sound and light, exciting energy and electricity, incredible living things, fascinating forces, amazing inventions, and much more. Then see if you can answer questions, such as: What was the loudest known sound on Earth? Which animals can sense Earth's magnetic field? How can a solid be changed into a liquid?

Read all about our incredible universe, mysterious planets, exploding stars, brave astronauts, powerful rockets, and much more. Then see if you can answer questions, such as: Why does Mars look red? On which planet do clouds smell like rotten eggs? Who was the first living thing to orbit Earth?

Read all about our incredible universe, mysterious planets, exploding stars, brave astronauts, powerful rockets, and much more. Then see if you can answer questions, such as: Why does Mars look red? On which planet do clouds smell like rotten eggs? Who was the first living thing to orbit Earth?

Read all about the human body, its strong skeleton, flexible muscles, amazing organs, and its digestive, nervous, and reproductive systems. Then see if you can answer questions, such as: Where are the most active muscles in the body? How many breaths do we take every day? How fast does a sneeze leave the body?

Take a closer look at the different engineering fields and skills needed for our world to function. Take a closer look at the engineering behind the buildings and structures that surround us. Discover how engineers balance forces so that buildings don't collapse, different types of bridge, and the engineering secrets of famous landmarks. You're the engineer!

Take a closer look at the different engineering fields and skills needed for our world to function. Energy powers everything in the world around us. But where does this energy come from? Discover the machines that engineers have created to convert energy into electricity, different types of electrical circuits, and how engineers design buildings to make them more energy-efficient. You're the engineer!

Find out about the life of Martin Luther King Jr. from how he fought racism and led the civil rights movement in the United States to his tragic death and how he is remembered now around the world. The book has photographs and a simple text suitable for young children.

Find out about the life of Martin Luther King Jr. from how he fought racism and led the civil rights movement in the United States to his tragic death and how he is remembered now around the world. The book has photographs and a simple text suitable for young children.

Everything on Earth is made from different materials. And the best place to see those materials is outside! Learn all about materials with these fun projects and experiments you can do outside or with things you find outdoors.

Find out about the life of American poet and writer Maya Angelou and her work as an activist in the US civil rights movement. The book has photographs and a simple text suitable for young children.

Explore mountains around the world, and find out how they are created. Discover what happens when mountains experience erosion and how climate and biomes change with elevation. Find out about the people, plants, and animals that live at high altitudes and the risk of deadly avalanches. "About this title" may belong to another edition of this title.

Natural resources on Earth are at risk of running out. Using too many natural resources, such as water, trees, and fossil fuels, is putting pressure on our supplies and damaging the environment. Discover the facts about how resources are used around the world, which resources are renewable and non-renewable, and what the future of natural resource management looks like.

Natural resources on Earth are at risk of running out. Using too many natural resources, such as water, trees, and fossil fuels, is putting pressure on our supplies and damaging the environment. Discover the facts about how resources are used around the world, which resources are renewable and non-renewable, and what the future of natural resource management looks like.

"Find out about the life of Nelson Mandela and his life as an activist against apartheid in South Africa. Jailed for his activisim, he eventually became president. The book has photographs and a simple text suitable for young children"--

"Find out about the life of Nelson Mandela and his life as an activist against apartheid in South Africa. Jailed for his activisim, he eventually became president. The book has photographs and a simple text suitable for young children"--

Find out about the life of American entrepreneur Oprah Winfrey from her childhood to breaking into the media and her many campaigns for change. The book has photographs and a simple text suitable for young children.

Human overpopulation is putting pressure on our planet and its natural resources. The more people there are, the more resources are consumed, harming the environment and depleting the world's supplies. Discover the facts about the world's growing population, which countries have the highest and lowest birth rates, and how overpopulation affects climate change.

Human overpopulation is putting pressure on our planet and its natural resources. The more people there are, the more resources are consumed, harming the environment and depleting the world's supplies. Discover the facts about the world's growing population, which countries have the highest and lowest birth rates, and how overpopulation affects climate change.