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Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Very Good. No Jacket. Former library book; May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-04 Pages:40 Publisher:Sanhuan Publishing House John is a very friendly giant who lives with a group of musical elves. However. he has to go out into the world to find a job to support his family. Soon. John became friends with the king and queen. and they asked him to stay and work for their family. John was loved by the king. queen and their family until the elves missed their big friend and came like clouds while playing their magical music. As usual.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-07 Publisher:Beijing Science and Technology.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:38 Publisher:Beijing Juvenile and Children's Publishing House People often say mountains are high and rivers are long. this is because we dare to measure the distance of rivers. but we can't imagine how deep the sea is. Even with the highly developed human technology. we still can't get close to understand who is in charge of the underwater world. But we believe that it is a deep-sea world where warmth and cruelty coexist. and the unknown is a.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House The planets in the solar system have their own characteristics. Some are hot. some are big. and some are crazy! How did scientists discover the planets? What are the temperaments of Mars. Saturn. Jupiter. and the Moon? What new discoveries did Oddblauber make? Let's follow Oddblauber's spacecraft and take a journey of exploration in the solar system!

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House When it comes to time. we are all familiar with it. because it quietly flows forward around us. Maybe you think that time is a very easy concept to explain. but it is not. For a long time. people have been exploring what time is. how it starts. when it stops. why time only increases in one direction. and what is the essence of time? Let's explore the mystery of time together!

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:48 Publisher:Beijing Juvenile and Children's Publishing House Our lives are closely related to chemistry: food will spoil if left for a long time. iron products will rust in a humid environment. and juice will become refreshing and delicious when filled with carbon dioxide. How do these chemical reactions occur? What are the conditions for them to occur? This book takes you to explore the secrets of chemical reactions. It is these chemical rea.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile & Children's Publishing House From funhouse mirrors. kaleidoscopes to mirages. light tricks are everywhere. Light allows us to see objects. but it also cunningly distorts the appearance of objects. giving us illusions. However. smart humans have long seen through the tricks of light. In this book.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Everyone can be a chemist. do you believe it? Chemistry is everywhere in our lives! Why does your mouth feel burning after eating chili peppers? Can the substance in candy be used to clean the toilet? Is the artificial rubber in gum the same as that in car tires? Let's explore these strange chemical knowledge together.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:37 Publisher:Beijing Juvenile and Children's Publishing House Please use hot to form words below! When you complain about the weather. you will use hot. When you eat snacks. you will pay attention to the calorie on the packaging bag. When you describe a scene in your composition. you may write warm. Smart humans have made a lot of efforts to describe heat. measure heat. obtain heat. and use heat. From cooking a dish to the greenhouse effect pr.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:40 Publisher:Beijing Juvenile and Children's Publishing House What is force? It is invisible and intangible. but it is closely related to us. Do you know? Living on the earth. our bodies are subjected to huge forces. just like two elephants sitting on us; in space. if astronauts walk outside the cabin without wearing space suits. their bodies will explode; a golf ball with a bumpy surface actually flies farther than a smooth one; bungee jumper.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:40 Publisher:Beijing Juvenile and Children's Publishing House Why do ripe apples fall to the ground. dropped cakes fall to the ground. and thrown balls fall to the ground? What kind of force is at work? It is gravity. Sometimes. gravity is so strong that even light cannot escape. such as when approaching a black hole in the universe; sometimes gravity is so weak that it is almost imperceptible. such as you and your friends. Crazy scientists ar.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:40 Publisher:Beijing Juvenile and Children's Publishing House You may not think that excessive oxygen can kill people! Carbon monoxide and carbon dioxide are only one oxygen atom apart. but the dangers are very different. In addition to these familiar names. there are some poisonous gases that you may not have heard of. such as mustard gas and cyanide. Some metals and metalloids are also highly toxic. and some are even around us! Be careful!

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:38 Publisher:Beijing Juvenile and Children's Publishing House Laser is not only a super weapon of superheroes in movies. but also a kind of artificial light that is closely related to our lives. Humans have been trying their best to tame and transform light. and physicist Einstein is one of them. Let's follow the footsteps of this mad scientist and explore the secrets of laser together!

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2024-01 Pages: 48 Publisher: Beijing Juvenile and Children's Publishing House A single atom can also release huge energy. The secret of nuclear fission and nuclear fusion lies here. What is the work of a nuclear reactor? Do you know the harm of nuclear radiation? How to properly dispose of nuclear waste? There is no need to talk about nuclear change. This book will answer the relationship between matter and energy for you and unveil the mystery of nuclear.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:40 Publisher:Beijing Juvenile and Children's Publishing House Modern people's lives are inseparable from electricity. Lights need electricity. refrigerators need electricity. mobile phones need electricity. and even the human body needs electricity. It is hard to imagine what our lives would be like without electricity. From the moment scientists discovered electricity in the 18th century to the present. the history of electricity has been mor.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:40 Publisher:Beijing Juvenile and Children's Publishing House Do you know where the coldest place on Earth is? Is it the Antarctic continent covered with ice and snow all year round. or Mount Everest where the wind can reach more than 10 levels? Do you know where the coldest place in the universe is? Is it Uranus or Neptune far away from the sun. or a more distant nebula in the depths of the universe? According to scientists. coldness can not .

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Fuel can provide our ancient ancestors with light and heat. and can also be used as a power to fly into space. However. the pollution caused by human use of fuel is constantly destroying the earth's environment on which we depend for survival. How long can we use fossil fuels? How serious are the hazards of nuclear power plant leakage? Is there any green and clean energy that can ch.

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2024-01 Pages: 38 Publisher: Beijing Juvenile and Children's Publishing House Speaking of magnetism. we may think of magnets and magnetic fields. But scientists think of more. After their research. magnetism has been fully utilized. and many inventions have been made. which have played a huge role in our lives. such as the compass. generator. motor and other inventions. Perhaps these inventions are not attractive enough for you. then what about computers.

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2024-01 Pages: 38 Publisher: Beijing Juvenile and Children's Publishing House We live in a material world. Some of these substances are gas. some are liquid. and some are solid. Although they appear in different forms. they are all made up of atoms. and atoms are made up of protons. neutrons. electrons and other basic particles that attract or repel each other and combine together. This book takes you to explore the stories of how these basic particles an.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Electricity is an energy source that cannot be seen. heard. smelled or touched. It is very amazing. both in terms of its energy and its countless uses. so it drives many scientists crazy. In this book. there are not only thrilling records about electricity. but also many shocking stories. Open this book and learn about the mystery of electricity.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House A scientist once said: Many of my scientific achievements were inspired by music. Music is an important part of human civilization. It comes from people's lives. enriches people's lives and makes life better. People use the ever-improving technology to make and improve musical instruments. and also invent methods to record and store music. By now. music can be stored and transmitted.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House We perceive the world through sound. Sometimes we hear pleasant sounds. sometimes we hear harsh sounds. Sound brings us joy. but also makes us irritable. Is there any secret to the production of sound? Scientists have long studied sound. and they found that sound is a kind of wave. By studying the amplitude. frequency. resonance and other characteristics of this wave. scientists hav.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Flip through the calendar. put on your watch. turn on your phone. and you will have your finger on the pulse of time. The time zone settings across mountains and rivers. the calendar rules of the years and months. and the time measurement of the minutes and seconds are all related to the laws of the universe. Let's open this book and trace the time measurement methods of the past dy.

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2024-01 Pages: 44 Publisher: Beijing Juvenile and Children's Publishing House Swamps are an important part of the earth's ecology. Although they are full of dangers and even many animals and plants in them pose unexpected threats to human health and life. human destruction of swamps. in turn. brings floods and even global climate change. Do you know where the best swamps are on the earth? What should you pay attention to when walking through swamps? Let's.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House For thousands of years. human beings have been keen on looking up at the stars to explore the secrets of the universe. Is there any intelligent life in the Milky Way? How big is the universe? How to identify constellations? How will the earth eventually perish? Let's open this book. set out to the universe. and see how lovely and terrifying it is!

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:48 Publisher:Beijing Juvenile and Children's Publishing House Since its birth. the earth has been hot and cold. as if it is playing a temper. After each ice age. the earth will experience a sweaty and hot period. Today. human production and life are inseparable from accurate weather forecasts. but the weather is always weird and changeable. How do scientists predict the weather? Let's take a look together~.

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Not too far. not too small. not too fast. not too slow. the Earth is undoubtedly one of the primitive universe. The climate is moderately cold and warm. there is not too much drinking water. and there is everything you need for food. just like a paradise; but since its birth. the Earth has been restless and turbulent. Do you know the real Earth? Let's uncover the secrets together!

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2024-01 Pages:44 Publisher:Beijing Juvenile and Children's Publishing House Survival of the fittest. Whether it is human beings. or animals and plants of all sizes. they must learn to adapt to the environment in order to survive. Whether the surrounding environment is beautiful or harsh. whether the sky is sunny or rainy. and whether the climate is warm or cold. this is the environment for all living things to survive. We have no choice but to adapt - throu.