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The respiratory system, also called the gas exchange system, is the body getting rid of carbon dioxide and taking in oxygen. Carbon dioxide, a waste product, goes out of the body. Oxygen, which the body needs, comes in. The first step in this process is breathing in air, or inhaling. The taking in of air rich in oxygen into the body is called ...

The Arctic fox is about 10-12 inches high (25–30 cm) and it weighs from 6.5 to 21 pounds (2.7-4.5 kg). The females tend to be smaller than the males. The Arctic fox has a round body shape, a short nose and legs, and short fluffy ears. This small round shape means that less of its body surface is exposed to the cold, which helps to keep it warm.Fossil bats. There are few fossilized remains of bats, as they are terrestrial and light-boned. An Eocene bat, Onychonycteris, was found in the 52-million-year-old Green River Formation in Wyoming, United States, in 2003. It could fly, but the well-preserved skeleton showed the cochlea of the inner ear could not achieve the great hearing ability …Large male narwhals can grow to a length of 15 feet, and weigh up to two tons. A female can give birth once every three years, after a pregnancy of 15 months. At birth, the baby narwhal is about five feet long and weighs about 180 pounds. All narwhals have two teeth in their upper jaw and a tusk. After the first year of a male narwhal's life ...The United Nations (UN) is an organization between countries established on 24 October 1945 to promote international cooperation.It was founded to replace the League of Nations following World War II and to prevent another conflict. When it was founded, the UN had 51 Member States; there are now 193. Most nations are members of the UN and …A coral reef is a type of biotic reef developing in tropical waters. Although corals are major contributors to the overall framework and bulk material comprising a coral reef, the organisms most responsible for reef growth against the constant assault by ocean waves are algae, especially, although not entirely, species of red algae.. Water …3) The adult male sea turtles return to the feeding sites in the water. 4) Female sea turtles cycle between mating and nesting. 5) Female sea turtles lay their eggs. 6) When the season is over, female sea turtles return to feeding sites. 7) Baby sea turtles incubate for 60–80 days and hatch.

Cyberbullying or cyberharassment is a form of bullying or harassment using electronic forms of contact. Cyber-bullying has become increasingly common, especially among teenagers. Harmful bullying behavior can include posting rumors about a person, threats, disclose victims' personal information, or pejorative labels (i.e., hate speech). …Kids Encyclopedia Facts. The oldest known pool fed by a hot spring, built in the Qin dynasty in the 3rd century BCE. Geothermal energy (from the Greek roots geo, meaning earth, and from thermos, meaning heat) is energy made by heat inside the Earth's crust. Although the Sun does heat the surface of the Earth, the heat from inside the Earth …Kids Encyclopedia Facts. Dick Turpin riding Black Nugget, from a Victorian toy theatre. A highwayman was a type of robber who attacked people who were travelling. They were common in the British Isles from the time of Elizabeth I to the 1800s. Highwaymen rode on horses. They were thought to be socially superior to footpads (who …Building material is any material which is used for a construction purpose. Many naturally occurring substances, such as clay, sand, wood and rocks, even twigs and leaves have been used to construct buildings. Apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic.. Bricks are …Kiddle is a safe search engine, offering a safe web, image, and video search. Results are vetted by editors.Syria was part of the United Arab Republic with Egypt in 1958-1961. Syria had some wars with Israel and some territories like the Golan Plateau were occupied by Israel. The line in the middle of this map is the border drawn in 1920 separating Iraq and Syria. In 2012 with the Arab Spring a bloody civil war began against President Bashar al …

402 kilometres (250 mi) Track gauge. 1,435 mm ( 4 ft 8 1⁄2 in) The London Underground is a system of electric trains which are in London, United Kingdom. It is the oldest underground railway in the world. It started running in 1863 as the Metropolitan Railway. After the opening the system was copied in many other cities, for example New …Feb 29, 2016 · The best safe search engine for our kids is Kiddle.co. Not only are search results safe, they are from selected sites and prioritized by readability and depth. Icons are nice and big and image... Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 12th–9th centuries BC to the end of antiquity (c. AD 600). Immediately following this period was the beginning of the Early Middle Ages and the Byzantine era.. Roughly three centuries after the Late Bronze Age collapse of …

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Kids Encyclopedia Facts. Evolution of dinosaurs. Dinosaurs and Dinosauria (Latin: Dinosaurium; meaning "terrible lizards") are a varied group of Archosaur reptiles. …Large male narwhals can grow to a length of 15 feet, and weigh up to two tons. A female can give birth once every three years, after a pregnancy of 15 months. At birth, the baby narwhal is about five feet long and weighs about 180 pounds. All narwhals have two teeth in their upper jaw and a tusk. After the first year of a male narwhal's life ...Solar System facts for kids. Kids Encyclopedia Facts. The Solar System is the Sun and all the objects that orbit around it. The Sun is orbited by planets, asteroids, comets and other things. The Solar System …

Henry VIII (28 June 1491 – 28 January 1547) was King of England from 22 April 1509 until his death in 1547. Henry is best known for his six marriages, and for his efforts to have his first marriage (to Catherine of Aragon) annulled.His disagreement with Pope Clement VII about such an annulment led Henry to initiate the English Reformation, …Japan (Japanese: 日本; Romanised as nihon or nippon) is a country in East Asia.It is a group of many islands close to the east coast of Korea, China and Russia.The Pacific Ocean is to the east of Japan and the Sea of Japan is to the west. Most people in Japan live on one of four of the islands. The biggest of these islands, Honshu, has the …Charles Jessel. Profession. Statesman. Sir Henry Parkes, GCMG (27 May 1815 – 27 April 1896) was a colonial Australian politician and longest non-consecutive Premier of the Colony of New South Wales, the present-day state of New South Wales in the Commonwealth of Australia. He has been referred to as the "Father of Federation" due to …Dracula is a horror novel written by the Irish writer Bram Stoker. Bram Stoker published the novel in England in 1897. The character 'Dracula' may have been based in part on Sir Henry Irving (who was an actor and friend of Bram Stoker) and on Vlad III the Impaler (a Romanian king). The story is about a vampire called Dracula.Christianity is the largest world religion by number of adherents (around 2.4 billion). Members of the religion are called Christians.Christians generally believe Jesus to be the Son of God, the second person of the Trinity.It is a monotheistic religion, meaning it has only one God.It is based on the life and teachings of Jesus of Nazareth.. To most of …The Cold War was the tense relationship between the United States (and its allies), and the Soviet Union (the USSR and its allies) between the end of World War II and the fall of the Soviet Union. It is called the "Cold" War because the US and the USSR never actually fought each other directly. Instead, they opposed each other in conflicts known …The Loch Ness Monster, also referred to as Nessie, is a supposed animal, said to live in the Scottish loch of Loch Ness, the second biggest loch in the country. The Loch Ness Monster story was big in the …Kiddle.co is an illustrated, large-font search engine designed specifically for kids . It’s powered by Google Safe Search so only family-friendly results are returned. If any “bad” words are ...Kiddle.co es un motor de búsqueda web y enciclopedia en línea que apunta a la seguridad de los niños. Kiddle utiliza Google Programmable Search Engine y emplea SafeSearch …

Spain is a country in Southern Europe.It is in the Iberian Peninsula near Portugal and Gibraltar. France and the country of Andorra are on its northeast side, where the Pyrenees mountains are.. The people of Spain are called Spaniards.Most people there speak Spanish (in Spanish, "Castellano", from Castilla, or "Español") but there are other …

Kids Encyclopedia Facts. Aristotle: marble copy of bronze bust by Lysippus, Louvre Museum. Aristotle (Stagira, Macedonia, 384 BC – Chalicis, Euboea, Greece, 7 March 322 BC) was a Greek philosopher. He was one of the most important philosophers in the history of Western civilization. It is said that Aristotle wrote many books, but only a …Kiddle.co is a web search engine and online encyclopedia emphasizing safety for children. Kiddle search is powered by Google Programmable Search Engine and employs …Nikola Tesla. Nikola Tesla (July 10, 1856 – January 7, 1943), was a Serbian inventor, electrical engineer, mechanical engineer, and physicist. He is best known for his part in the design of the modern alternating current (AC) electricity supply system. He was born in the village of Smiljan, in the part of former Austria-Hungary that is now ...Kinds of democracy. Democracy may be direct or indirect. In a direct democracy, everyone has the right to make laws together. One modern example of direct democracy is a referendum, which is the name for the kind of way to pass a law where everyone in the community votes on it. Direct democracies are not usually used to run …Grassland facts for kids. Kids Encyclopedia Facts. Grassland in Cantabria, northern Spain. A grassland is an area of land that mostly contains grasses. There are wild grasses, and less trees. Several parts of the world have grasslands. Grasslands are found in Africa, North America, Central Asia, South America, and near the coasts of Australia.Israel is the only Jewish country, and Jews all over the world think of Israel as their spiritual home. Israel's population was 8.1 million people in 2013 and 6.04 million are Jewish. Almost all the other citizens of Israel are Arab (1.6 million) and include Muslims, Christians, Druze, and Samaritans.Spiders (order Araneae) are air-breathing arthropods.They have eight legs and chelicerae with fangs that inject venom.Most make silk.They are a large order of arachnids and rank seventh in total species diversity among all groups of organisms. About 40,000 spider species, and 109 families have been recorded by taxonomists.Over twenty …

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The river has many industrial towns like Patliputra, Kannauj, Kara, Allahabad, Murshidabad, Baharampur and Kolkata on its banks. The Ganges Basin drains 1,000,000-square-kilometre (390,000 sq mi) and supports one of the world's highest densities of humans. The average depth of the river is 52 feet (17 m), and the maximum …Large male narwhals can grow to a length of 15 feet, and weigh up to two tons. A female can give birth once every three years, after a pregnancy of 15 months. At birth, the baby narwhal is about five feet long and weighs about 180 pounds. All narwhals have two teeth in their upper jaw and a tusk. After the first year of a male narwhal's life ...Computer facts for kids. Kids Encyclopedia Facts. A drawing of a modern desktop computer. Woman typing on a laptop. Kids using a tablet computer. A computer is a machine that accepts data as input, processes that data using programs, and outputs the processed data as information. Many computers can store and retrieve information using …Kiddle is a search engine that filters out inappropriate results and shows only safe and reliable sites for kids. It has three categories of results: sites written for kids, sites written …The building of the Colosseum began under the rule of the Emperor Vespasian in around 70–72 AD. The area was flat, in a valley between the Caelian, Esquiline and Palatine Hills.There was a stream flowing through the valley, but this had been made into a canal.People had been living in this area for over 200 years, but the …Solar System facts for kids. Kids Encyclopedia Facts. The Solar System is the Sun and all the objects that orbit around it. The Sun is orbited by planets, asteroids, comets and other things. The Solar System …Snowdon ( Welsh: Yr Wyddfa) is the highest mountain in Wales, at an elevation of 1,085 metres (3,560 ft) above sea level, and the highest point in the British Isles outside the Scottish Highlands.It is located in Snowdonia National Park (Parc Cenedlaethol Eryri) in Gwynedd (historic county of Caernarfonshire).It is the busiest mountain in the …On March 1–2, 2008, a heavy dust storm hit northeast China and parts of Mongolia. and ended over North Korea and South Korea on the March 4.. Twenty one people died in a rural Mongolian blizzard on May 8, 2008. Parts of the Chinese province of Inner Mongolia were also affected on the May 8, 2008.. On June 2, 2009, it was said that … ….

Kids Encyclopedia Facts. Antarctica is the Earth 's southernmost continent. It is on the South Pole. It's almost entirely south of the Antarctic Circle. Around Antarctica …Kids Encyclopedia Facts. History is the study of past events. People know what happened in the past by looking at things from the past, including records (like books, newspapers and letters) and artifacts (like pottery, tools, and human or animal remains). Libraries, archives and museums collect and keep these things for people to study history.Mayan civilization facts for kids. Maya mask. Stucco frieze from aceres, Campeche. Early Classic period ~250–600 AD. The Maya civilization and Mayan religion. They lived there for a long time and some of the Maya people live there even today. The Mayans lived there 4,000 years ago (about 2000 BC ).Alan Mathison Turing OBE FRS (/ ˈ tj ʊər ɪ ŋ /; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher, and theoretical biologist.Turing was highly influential in the development of theoretical computer science, providing a formalisation of the concepts of algorithm and computation with the …Joseph Stalin (or Iosif Vissarionovich Stalin; 18 December 1878 – 5 March 1953) was the leader of the Soviet Union from 1922 until his death. He replaced Vladimir Lenin as leader of the Soviet Union. Stalin was a totalitarian ruler, and stayed in power by removing anyone he thought might be a threat to him. His ideas and policies turned the …Florida has 4,510 islands that are ten acres (4 ha) or larger in area, the second highest number after Alaska. Much of the state is at or near sea level, and is characterized by sedimentary soil. Florida is the flattest state in the country, with the lowest high point of any U.S. state, at just 345 feet (105 meters).Nikola Tesla. Nikola Tesla (July 10, 1856 – January 7, 1943), was a Serbian inventor, electrical engineer, mechanical engineer, and physicist. He is best known for his part in the design of the modern alternating current (AC) electricity supply system. He was born in the village of Smiljan, in the part of former Austria-Hungary that is now ...Kids Encyclopedia Facts. Evolution of dinosaurs. Dinosaurs and Dinosauria (Latin: Dinosaurium; meaning "terrible lizards") are a varied group of Archosaur reptiles. …The Cold War was the tense relationship between the United States (and its allies), and the Soviet Union (the USSR and its allies) between the end of World War II and the fall of the Soviet Union. It is called the "Cold" War because the US and the USSR never actually fought each other directly. Instead, they opposed each other in conflicts known …Japan (Japanese: 日本; Romanised as nihon or nippon) is a country in East Asia.It is a group of many islands close to the east coast of Korea, China and Russia.The Pacific Ocean is to the east of Japan and the Sea of Japan is to the west. Most people in Japan live on one of four of the islands. The biggest of these islands, Honshu, has the … Kiddle.co, Ancient Egypt, or the Egyptian Empire, was a society that began about 3150 BC, and lasted until 20 BC when it was invaded by the Roman Empire.It grew along the River Nile and was at its most powerful …, A flood is an overflow of water on normally dry ground. The most common causes of floods are overflowing river, a dam break, snowmelt, or heavy rainfall. Less common causes are tsunamis, storm surges. The most deadly flooding was in 1931 in China and killed between 2,000,000 and 4,000,000 people. Bangladesh is the most flood-prone …, Buddhism originated in India, based on the teachings of Siddhartha Gautama, later known as Gautama Buddha.A Buddha is one who is said to be awake to the truth of life. Buddha is a Pali word which means "the awakened one." According to Buddhism, there were countless Buddhas before Gautama Buddha, and there will be …, Kids Encyclopedia Facts. People playing a large scale version of the iconic Pong video game. Video games are electronic games played on a video screen (normally a television, a built-in screen when played on a handheld machine, or a computer). There are many types, or genres, of these games: role-playing games; shooters, first-person …, In many places in the temperate zone, autumn is a time for harvesting most crops. Deciduous trees (trees that lose their leaves every year) lose their leaves, usually after turning yellow, red, or brown. In many countries, autumn is the time a new school year starts. In the UK, the period of school between the start of September and the end of …, The planets in the Solar System have names of Greek or Roman gods, apart from Earth, because people did not think Earth was a planet in old times. However, Earth is occasionally referred by the name …, , Among the numerous flowers and shrubs are hibiscus, flame lily, snake lily, spider lily, leonotis, cassia, tree wisteria and dombeya. There are around 350 species of mammals that can be found in Zimbabwe. There are also many snakes and lizards, over 500 bird species, and 131 fish species. Large parts of Zimbabwe were once covered by …, The river has many industrial towns like Patliputra, Kannauj, Kara, Allahabad, Murshidabad, Baharampur and Kolkata on its banks. The Ganges Basin drains 1,000,000-square-kilometre (390,000 sq mi) and supports one of the world's highest densities of humans. The average depth of the river is 52 feet (17 m), and the maximum …, China ( Chinese: 中国; pinyin: Zhōngguó ), officially the People's Republic of China ( PRC ), is a country in East Asia. It is the world's second-most populous country with a population exceeding 1.4 billion. China spans the equivalent of five time zones and borders fourteen countries by land, tied with Russia as having the most of any ..., Australia's life expectancy of 83 years (81 years for males and 85 years for females), is the fifth-highest in the world. It has the highest rates of skin cancer in the world, while cigarette smoking is the largest preventable cause of death and disease, responsible for 7.8% of the total mortality and disease., Political party. Whig. Signature. Sir Isaac Newton FRS (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, alchemist, theologian, and author who was described in his time as a natural philosopher. He was a key figure in the Scientific Revolution and the Enlightenment., Kids Encyclopedia Facts. Evolution of dinosaurs. Dinosaurs and Dinosauria (Latin: Dinosaurium; meaning "terrible lizards") are a varied group of Archosaur reptiles. …, Anglo-Saxon art before the time of Alfred (who ruled from 871–899) is a mixture of Anglo-Saxon and Celtic techniques and styles. The Sutton Hoo treasure is an excellent example of very early Anglo-Saxon metalwork and jewellery. It came from a royal grave of the early 7th century. The period between Alfred and the Norman Conquest …, Jacques-Yves Cousteau ( 11 June 1910 – 25 June 1997) was a French naval officer, explorer, ecologist, filmmaker, scientist, photographer and researcher who studied the sea and all forms of life in water. He co-developed the aqua-lung, pioneered marine conservation and was a member of the Académie française. He is generally known in …, Learn Deforestation facts for kids. Global deforestation suddenly increased around 1852. As of 1947, the planet had 5.8 million to 6.2 million sq. mi. (15 million to 16 million km 2) of mature tropical forests …, Flowers are the reproductive organ only of flowering plants (Angiosperms).The petals of a flower are often brightly colored and scented to attract insects and other pollinators. The stamen is the male part of the plant. It is composed of the filament (a stalk) that holds the anther, which produces the pollen. Pollen is needed for …, The Loch Ness Monster, also referred to as Nessie, is a supposed animal, said to live in the Scottish loch of Loch Ness, the second biggest loch in the country. The Loch Ness Monster story was big in the …, Geomorphology is the scientific study of landforms and the processes that shape them.. More broadly, it studies the evolution of the topography of a planet. Geomorphologists seek to understand why landscapes look the way they do, to understand landform history and dynamics, and to predict future changes. They use a combination of …, Capitalism is an economic system based on the private ownership of the means of production and their operation for profit. Central characteristics of capitalism include capital accumulation, competitive markets, price system, private property, property rights recognition, voluntary exchange, and wage labor.In a capitalist market economy, …, The Himalayas are a mountain range in South Asia.. The west end is in Pakistan.They run through Jammu and Kashmir, Himachal Pradesh,Uttaranchal, Sikkim and Arunachal Pradesh states in India, Nepal, and Bhutan.The east end is in the south of Tibet. They are divided into 3 parts Himadri, Himachal and Shiwaliks. The 15 highest …, Minerals are usually solid, inorganic, have a crystal structure, and form naturally by geological processes. The study of minerals is called mineralogy. A mineral can be made of single chemical element or more usually a compound. There are over 4,000 types of known minerals. Two common minerals are quartz and feldspar., Snowdon ( Welsh: Yr Wyddfa) is the highest mountain in Wales, at an elevation of 1,085 metres (3,560 ft) above sea level, and the highest point in the British Isles outside the Scottish Highlands.It is located in Snowdonia National Park (Parc Cenedlaethol Eryri) in Gwynedd (historic county of Caernarfonshire).It is the busiest mountain in the …, Feb 29, 2016 · The best safe search engine for our kids is Kiddle.co. Not only are search results safe, they are from selected sites and prioritized by readability and depth. Icons are nice and big and image... , Learn Landmarks facts for kids. Originally, a landmark literally meant a prominent, easily identified geographic point, (like a mountain, a cliff, or a river) used by explorers and others to find their way back or through an area.. In modern use, it includes anything that can be recognized easily, such as a monument, building, or other …, Joseph Stalin (or Iosif Vissarionovich Stalin; 18 December 1878 – 5 March 1953) was the leader of the Soviet Union from 1922 until his death. He replaced Vladimir Lenin as leader of the Soviet Union. Stalin was a totalitarian ruler, and stayed in power by removing anyone he thought might be a threat to him. His ideas and policies turned the …, Canada is a country in North America.Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's second-largest country by total area, with the world's longest coastline. Its border with the United States is the world's longest international land border. The …, Kids Encyclopedia Facts. Clive Staples Lewis (29 November 1898 – 22 November 1963), usually called C. S. Lewis, was a British scholar who wrote about 40 …, Archaeology is the study of the past by looking for the remains and artifacts (historical things) left by the people who lived long ago.These remains can include old coins, tools, buildings, and inscriptions.Archaeologists, the people who study archaeology, use these remains to understand how people lived. Archaeologists think it is important to …, The planets in the Solar System have names of Greek or Roman gods, apart from Earth, because people did not think Earth was a planet in old times. However, Earth is occasionally referred by the name …, An average adult American alligator weighs 790 lb (360 kg) and is 13.1 ft (4.0 m) long. However, they can grow to 14 ft (4.3 m) long and weigh over 990 lb (450 kg). The largest alligator ever recorded, found in Louisiana, was 19.2 ft (5.9 m) long. There are two kinds of white alligators: albino and leucistic., , Kids Encyclopedia Facts. People playing a large scale version of the iconic Pong video game. Video games are electronic games played on a video screen (normally a television, a built-in screen when played on a handheld machine, or a computer). There are many types, or genres, of these games: role-playing games; shooters, first-person …