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math is the study of abstractions. math allows us to isolate one or a few features such as the number, shape or direction of some kind of object. then we can study what can be learned about the behavior of those features while ignoring everything else about the object.

1,099 questions

this category encompasses all questions about the composition, structure, properties, and reactions of matter.

314 questions

conditions and diseases include everything from aches and pains to broken bones, chronic conditions to life-threatening diseases, symptoms and possible causes, and much more. questions range from what causes hair to turn grey, possible causes of pains, origins of viruses, and anything to do with conditions and diseases associated with health.

242 questions

geometry = math of euclid. geometry is the branch of math known for shapes (polygons), 3d figures, undefined terms, theorems, axioms, explanation of the universe, and pi.

239 questions

the use of letters to substitute unknown numbers to form an equation. solve the equation to get the unknown number using different methods such as simultaneous equations and more.

221 questions

the observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to pluto, recently demoted from planet to dwarf planet. questions on knowledge about the material and physical aspects of our world are asked and answered here.

191 questions

physics regards the physical aspects of the natural world. it includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.

144 questions

find questions about the important events of the united states of america from the us civil war to us presidents.

136 questions

biology is a branch of science that studies the nature of life from the smallest parts of living things to the largest plants and animals. ask and answer questions about the living world and its wonderful inhabitants in this category!

127 questions

definitions are the meanings of words.

115 questions

this section covers topics of genetics such as variation, pedigrees, mendelian genetics and mutations.

110 questions

'history, politics and society' deals with the affairs of human beings. the categories overlap to a degree: 'history' describes changes in those affairs, and encompasses the other two; 'politics' is about how people govern themselves; and 'society' is about how people organize and conduct their lives. questions here range from ancient history to history-in-the-making, political views to decisions of lawmakers, and present and past societies and how people relate to each other within their societies.

98 questions

the use of words to evoke memories and emotions has long been an endeavor of the human race. the styles are wide and varied, some requiring rigid guidelines, rhyming couplets and specific syllable counts will others refuse to be constrained and thrive on free form and ignore rules of any type.

95 questions

a truly healthy person has a sound body and mind that is free of disease and infirmity. healthy living includes taking the steps needed to optimize one's chances of surviving and thriving, like eating a healthy diet and exercising regularly. questions relating to all aspects of health and living a healthy life are welcome here!

92 questions

ang kategoryang ito ay para sa mga katanungan nagtanong sa wikang tagalog. this category is for questions asked in the tagalog language.

90 questions

this category is for questions and answers about forms of books and literature. the categories subtopics include authors, poetry, plays, classics, and many other literary elements.

87 questions

movies are a dramatized representation of reality. they often have many literary elements, and usually are very entertaining. ask questions here related to feature films and cinematic history.

84 questions

ever wanted to know the difference between a boysenberry and a blueberry? socialism and communism? windows and linux? look no further. this category answers your questions about 'the differences between...'

83 questions

rounding numbers involves making the last number requested the last digit in the number and replacing all numbers after it with zeros. for example, rounding the number 23456 to the tens digit would result in the number 23460.

80 questions

the supreme law of the united states, the constitution provided the framework for the creation of the united states government.

77 questions

animals enrich our lives in so many different ways. the animal life category is for questions and answers about animals of all types, including pets, sea life, and farm animals. you can ask questions or find information regarding animals, their history, care, health issues, breeding, and behavior.

74 questions

literature includes written works of an imaginative, journalistic or scholarly nature. language is a system of spoken and written symbols by means of which people can communicate with each other. we invite you to ask and answer questions about languages and literature; including pronunciation, grammar, definitions, examples, acronyms, abbreviations, etc.

69 questions

percentages are defined as a fraction or portion of a whole. generally percentages deal with an amount out of one hundred but can be used in sales, economics, and science. if you've walked into any store you're sure to find something marked a certain percent off. fractions are not whole numbers with a numerator over a denominator. usually the numerator and denominator are expressed as integers. there are four types of fractions: simple fractions, complex fractions, mixed fractions, and improper fractions. decimals are also not integers. they are expressed often like 0.34 and are often rounded off since some go for too long. both decimals and fractions are also used to convert to percentages.

65 questions

questions about words beginning with certain letters, including those used in the game scattergories. scattergories offers players twelve of 144 categories and one of twenty letters each turn, which they have to pair. so, you would have to come up with say, a college major, a boy's name, or another category that starts with the letter b (or whatever letter you roll).

64 questions

questions about the properties and characteristics of elements as observed in nature and in compounds. chemical formulas are also converted to and from symbols in covalent or ionic bonds. all the questions you want to ask about the elements and the compounds they form.

63 questions

the category includes questions about the various ways in which humans measure objects or concepts. this category is also home to conversions between units such as grams to pounds or liters to milliliters.

63 questions

african-american history is the part of american history that discusses the black american or african-american ethnic group. african american refers to black people from the caribbean who migrated to the u.s. and celebrated their history during black history month.

63 questions

from democracy to communism, every country on earth has a different political organization. ask questions about political parties, leaders and history here.

60 questions

this category is for questions and answers about the american civil war. this was an internal conflict involving the state rights, and divided the united states in a bloody struggle. it was fought after the secession of eleven southern states, and lasted from 1861 to 1865.

60 questions

music consists of sound mixed with elements including pitch, rhythm, and tempo. here you can ask questions about music and the hottest songs of today and yesterday.

56 questions