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Informative and lively, Show What You Know is a quiz show for curious tweens and their grown-ups from Encyclopædia Britannica. Hosted by author Christopher Lloyd, each episode gives three middle-grade contestants a chance to go head to head with questions about the earth, the universe, ancient history, and more from the Britannica All New Kids’ Encyclopedia: What We Know & What We Don’t.

Posted: Monday Jan 18, 2021

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Pet | animal | Britannica

Posted: (2 days ago) Pet, any animal kept by human beings as a source of companionship and pleasure. While a pet is generally kept for the pleasure that it can give to its owner, often, especially with horses, dogs, and cats, as well as with some other animals, this pleasure appears to be mutual. Thus, pet keeping can

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polyethylene terephthalate | Structure, Properties, & Uses ...

Posted: (3 days ago) PET is produced by the polymerization of ethylene glycol and terephthalic acid. Ethylene glycol is a colourless liquid obtained from ethylene, and terephthalic acid is a crystalline solid obtained from xylene.When heated together under the influence of chemical catalysts, ethylene glycol and terephthalic acid produce PET in the form of a molten, viscous mass that can be spun directly to fibres ...

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Positron emission tomography | imaging technique | Britannica

Posted: (2 days ago) Positron emission tomography (PET), imaging technique used in diagnosis and biomedical research. It has proved particularly useful for studying brain and heart functions and certain biochemical processes involving these organs (e.g., glucose metabolism and oxygen uptake). In PET a chemical compound

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pet - Kids | Britannica Kids | Homework Help

Posted: (7 days ago) Pets are animals that people keep mainly for enjoyment and companionship. Some pets also help or protect their owners. Pets need a lot of attention and care. However, they also add a lot of fun and happiness to their owners’ lives.

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Cat - Cats as pets | Britannica

Posted: (1 days ago) Cat - Cat - Cats as pets: The popularity of the cat, especially of pedigreed breeds, has continued to grow. The cat’s independent personality, grace, cleanliness, and subtle displays of affection have wide appeal. Typically, cats are creatures of habit; they are inquisitive, but not adventurous, and are easily upset by sudden changes of routine.

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PET fibre | chemical compound | Britannica

Posted: (4 days ago) Other articles where PET fibre is discussed: coarctation of the aorta: …a synthetic fibre such as Dacron™, or the defect is left but is bypassed by a Dacron™ tube opening into the aorta on either side of the defect—a permanent bypass for the blood flow. Surgery for this condition is most effective in young persons and is rarely performed on patients…

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cat | Breeds & Facts | Britannica

Posted: (2 days ago) Cat, domesticated member of the family Felidae, order Carnivora, and the smallest member of that family. Like all felids, cats are characterized by supple low-slung bodies, finely molded heads, long tails that aid in balance, and specialized teeth and claws that adapt them to a life of active hunting.

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