->'''Calvin:''' Dad, what causes wind?\\
'''Dad:''' Trees sneezing.\\
'''Calvin:''' Really?\\
'''Dad:''' No, but the truth is more complicated.
-->--''CalvinAndHobbes''

When things are strange and complicated, people like to explain them by analogy. Sometimes, this analogy is over simplified; for instance, while atoms are usually described as a proton-neutron nucleus with electrons orbiting it like planets round a star, in reality they don't resemble the solar system at all. However, it is still useful because it gives the listeners a simple concept they can grasp, while a more accurate explanation would confuse them or simply go over their heads. Once they've learned the analogy, they can continue to more complex topics that will eventually lead to the truth of the situation -- or to another, more complicated set of LiesToChildren.

This is likely to [[AnalogyBackfire backfire]] if the listener [[SidetrackedByTheAnalogy takes the analogy too literally.]]

The term was coined by Ian Stewart and Jack Cohen, and used in the book ''Discworld/TheScienceOfDiscworld''. Discworld books occasionally make an odd analogy, then, when taxed, say, "[[{{Dissimile}} no, it's nothing like that]], but it's a lie you can understand."

TruthInTelevision as the atom example above shows. Considering how much we don't understand of the universe, science ''itself'' is this to a degree. That said, only add general RealLife examples, please. (ex: "the atom looks like a solar system" analogy)

See also PhlebotinumAnalogy. May pop up while giving TheTalk. Compare LaymansTerms. We're pretty familiar with it here on TVTropes, due to RealityIsUnrealistic.
----
!!Examples:

[[foldercontrol]]

[[folder:Comic Books]]
* In ''ComicBook/{{Runaways}}'', Gert {{lampshade}}s the fact that their parents never told them they were {{supervillain}}s by listing all of the things parents lie to their children about: Santa, The Easter Bunny, the Tooth Fairy and ''[[HollywoodAtheist God]].''
[[/folder]]

[[folder:Film]]
* ''[[Series/TheAddamsFamily Addams Family Values]]''. One of the jokes has normal children telling the Addams kids about the stork--Wednesday responds by explaining where babies ''really'' come from.
* In ''MiracleOn34thStreet'', Mrs. Walker tried to avoid this with her daughter, Susan, by telling her the truth about everything, in this case the reality about Santa Claus. The argument the movie makes is that kids can become bland and lack imagination if this is all they are taught.
* In ''{{Ink}}'', the soul of a little girl, Emma, is kidnapped, leaving her body in a coma. A Storyteller, captured while trying to rescue her, tries to explain what is happening and make the girl less afraid. "You still look like a little girl, but as soon as you came into this world, you started turning into a lioness." Emma replies, "You're full of it."
* Robert Enrico's last film, ''Made in Winter'', has a divorced father of three barricading himself in his farmhouse with his kids after their mom got custody. Similar to ''Film/LifeIsBeautiful'', he tells them this is just a game, and keeps them thinking that right through the police negotiations and up until the armored security forces and SWAT teams arrive and [[spoiler: he shoots the kids and himself]]. This is based on the real-life Andre Fourquet tragedy in 1969 in the village of Cestas in southern France, although Fourquet was honest with his children.
[[/folder]]

[[folder:Literature]]
* In ''Discworld/TheScienceOfDiscworld'' series, [[TropeNamer Lies-To-Children]] are not only explained in the non-fiction portions, but also used in-character (Ponder's Lies-To-Wizards and Hex's Lies-To-People) in the fiction segments.
** The Lies-to-Darwin, since telling him the actual truth would be far too much of a MindScrew.
** In ''Discworld/NightWatch'', A history monk explains an aspect of time travel to Vimes using a metaphor involving jumping off a mountain as opposed to climbing it. Another monk complains that this is incredibly inaccurate, but the first doesn't care so long as Vimes understands what he needs to.
** In ''Discworld/{{Hogfather}}'', Death explains to Susan that telling children little lies about such "non-existent" beings as the Hogfather and the Tooth Fairy helps train them to believe in the "big lies"; abstract concepts such as justice and mercy.
* In the JudyBlume book ''Starring Sally J. Freedman as Herself'', Sally asks her mother how babies are made. Her mother mumbles something about how the husband plants a seed in the wife; ten-year-old Sally wants more details, so Mrs. Freedman buys her a book about it. Later on, her unmarried teenage neighbour gets pregnant and Sally asks how that's possible, since the book told her sex was something only married people did.
* Merlin Athrawes in DavidWeber's ''{{Literature/Safehold}}'' series possesses enhanced abilities ''far'' beyond the human norm because he is a machine known as a [=PICA=]. However, the residents of the planet Safehold are trapped in anti-technology MedievalStasis and lack the foundation to understand this. Merlin explains his capabilities by comparing them to those attributed to legendary heroes called ''seijin'' ([[BilingualBonus Japanese for "holy men"]]). In particular, his access to high tech surveillance allowing Merlin to spy on just about anyone, anywhere, are explained as visions that allow him to see the present, but neither past nor future.
* ''Great Lies To Tell Small Kids'' by Andy Riley is partly this, and partly just {{troll}}ing your children or younger relations: "Wine makes Mummy clever!" "Slugs are snails that couldn't pay the mortgage".
* In PoulAnderson's "Literature/TimePatrol", an instructor tells the recruits that they can get it because they come from industrialized eras; a Roman could not handle the idea of machines, and as for Babylonians, they have to be fed a line about a war between gods. When one recruit asks what they are being told, the answer is the truth but only as much as they can handle.
* In ''Literature/LettersToHisSon'' by British statesman Lord Chesterfield: "The good Protestant conviction, that ThePope is both Antichrist and the Whore of Babylon, is a more effectual preservative in this country against popery, than all the solid and unanswerable arguments of Chillingworth. [...] And that silly, sanguine notion, which is firmly entertained here, that one Englishman can beat three Frenchmen, encourages, and has sometimes enabled, one Englishman in reality to beat two." (letter 64)
* In ''Literature/LittleStar'', Lennart convinces Theres to not leave the house by telling her that the world is full of "big people" who want to eat up the "little people" like her to the point that she is terrified of going outside.
* Ma tells Jack a complex set of lies in ''Literature/{{Room}}'', creating an entire cosmos. Once she confesses to him that television often shows "pictures of real things", she has to "unlie" about everything else.
* Prior to surgery for urethral cancer, five-year-old Deborah Blau sees right through the doctors' lies in ''INeverPromisedYouARoseGarden''. The lies are so ongoing and obvious that she comes to believe they're planning to kill her.
-->"Now just be quiet. This won't hurt a bit," they had said, and then had come the searing stroke of the instrument...
-->"What is this place?" she had asked.
-->"Dreamland," had come the answer, and then the hardest, longest burning of that secret place she could imagine.

[[/folder]]

[[folder:Live Action TV]]
* Occasionally used in ''Series/DoctorWho'' as ways to reassure companions. For instance, in "The Eleventh Hour":
--> '''The Doctor''': You know when grown-ups tell you "everything's gonna be fine" you know they're probably lying to make you feel better?
--> '''Amelia Pond''': Yes.
--> '''The Doctor''': [[BlatantLies Everything's going to be fine.]]
** The Fourth Doctor's education of Leela is pretty much entirely made up of this, since due to her extremely primitive background and absence of any education even basic scientific principles seem like magic to her. It's bad enough when he's trying to explain to her what a robot is, so of course when he's trying to explain genuinely mindbending SufficientlyAdvancedTechnology like how the TARDIS is BiggerOnTheInside, things quickly get absolutely nonsensical.
* On ''Series/{{Community}}'', Troy finds out on his 20th birthday that he's actually turning ''21'' because his mother told him that everyone's ten for two years, because fifth grade is hard for everybody.
-->'''Troy:''' MOM, HOW MANY LIES HAVE I BEEN LIVING?!
* In one episode of ''Series/StarTrekVoyager'', Q brings some individuals from Earth's history to the ship for a judicial hearing (long story), including IsaacNewton. Janeway tries to explain the concept of being transported in time and gets some blank looks in reply, so she changes tack: "You're having a very strange dream."
[[/folder]]

[[folder:Newspaper Comics]]
* This is a running gag with Calvin's Dad from ''CalvinAndHobbes'', as the page quote illustrates, but always taking it [[BlatantLies so far from reality]] it can hardly count as helpful. He also explains the workings of a lightbulb and vacuum cleaner as "[[AWizardDidIt magic]]".
--> '''Calvin (turns lamp on and off)''': "Look, mom, magic!"
--> '''Calvin's mom''': "That's not magic!"
** [[LampshadeHanging Lampshaded]] in the strip the page quote comes from. After a BeatPanel we get Calvin commenting to Hobbes about how "The trees are really sneezing today". Calvin himself decided he didn't care to hear the true, complicated answer.
** He hilariously lampshades the Trope ''and'' plays it straight in one strip where he tells Calvin that the reason he knows so much is because once you become a father, you get a book that explains everything in the world, which leads to this exchange:
-->'''Calvin:''' Can I see it?
-->'''Dad:''' Nope.
-->'''Calvin:''' Why not?
-->'''Dad:''' It tells you what it's like to have a kid.
-->'''Calvin:''' SO?
-->'''Dad:''' You aren't allowed to know that until it's too late not to have one.
[[/folder]]

[[folder:Religion]]
* Many branches of theology or religious philosophy, Christian or otherwise, would say that it is impossible to speak of the divine or transcendental in any other way than through analogies that will always be imperfect. Others would say even that is impossible and that it can only be "described" through negations, stating what the transcendental is not but never what it is. A common criticism is that this idea doesn't actually mean anything since none of the terms can be defined. For example: "The Tao that can be spoken of is not the true Tao".
* Atheists view religion as such and vice versa.
[[/folder]]

[[folder:Video Games]]
* ''{{Metro 2033}}'': A very sad example is shown in the first station, where you see a boy and a father talking with each other. The boy asks when his mother will return from some journey, and his father only replies, "Soon," and mentions if only she could see how much he has grown up. Given the nature of the setting, it's safe to say his mother is probably lying dead in a tunnel somewhere.
* Another sad example in ''VideoGame/FalloutNewVegas: Honest Hearts''. Randall Clark, an old, weary survivor leaves gifts of food and medicine for a group of starving children, watching over them from a distance and keeping him safe. When they begin to regard him as an angel or a God-figure, he does not want to shatter their illusions and leave them worse off when he dies. Thus, he leaves one final gift, and a note saying that he must depart deep into the mountains, but that he will always be watching over them. He then becomes known by those childrens' descendants as "[[AwesomeMcCoolName The Father in the Cave]]".
* ''[[VideoGame/DarkSeed Dark Seed 2]]'' uses one as an odd plot point. Years ago, when Mike had nightmares of monsters coming out of his closet, his mother pretended to lock it. It's not locked. [[spoiler:It contains a portal to the Dark World]]. Yet Mike is [[YouShouldntKnowThisAlready incapable of opening it]] until someone reveals the deception to him. When confronted, his mother barely remembers it and can't believe he never figured it out.
[[/folder]]

[[folder:Web Comics]]
* From ''Webcomic/{{Adventurers}}'' at a [[http://www.adventurers-comic.com/d/20050910.html magic school]]:
--> '''Ardam''': "Sir, is that really how summoning works?"
--> '''Teacher''': "No, but it'll do until the practical course next year."
* ''Webcomic/{{xkcd}}'':
** Strip 803 gives us the [[http://xkcd.com/803/ airplane wing]], and several options for what to do when a child confronts you with the lie.
** Also, ''The Museum of Dad Trolling'', in [[http://xkcd.com/826/ strip 826.]]
** The very common analogy that gravity is like objects "pressing down" on a sheet, shown very well in [[http://xkcd.com/895/ strip 895.]]
*** And subverted in [[http://xkcd.com/1158/ strip 1158]].
** The proper way to handle people telling lies to children? [[http://xkcd.com/1255/ Tell bigger lies.]]
* Max and Zoey's [[CloudCuckooLander dad]] from ''Webcomic/{{Paranatural}}''. "You'd better be ready by eight o-clock, Zoey. In mayview, they send tardy kids to the ''mines''." She does call him out on it, though.
* In ''{{Homestuck}}'', Jake English's grandmother tells him that she chose that last name because it was the name of her EvilStepmother's ex-husband, on the basis that Jake was too young to understand that it was actually the name of a powerful demon that said EvilStepmother feared and obeyed.
* Subverted in ''Webcomic/GirlGenius'' [[http://www.girlgeniusonline.com/comic.php?date=20031121 here]], when a young Agatha asks about her locket.
* In ''Webcomic/{{Freefall}}'', [[http://freefall.purrsia.com/ff700/fv00636.htm explaining failed. So Florence told Helix that he has to keep Mousie company in sleeping.]]
* ''Webcomic/OriginalLife'' has Fisk tell a young Janie that babies come from Wal-Mart.
* In ''DragonMango'' -- how do you keep a little girl who can teleport out of a fight? [[http://dragon-mango.com/comic/chapter07/dm07-33.htm Tell her she has to watch the chickens, which the attackers are probably after.]]
[[/folder]]

[[folder:Web Original]]
* [[http://notalwaysright.com/not-so-smart-card/6034 This]] example from ''Website/NotAlwaysRight''. Carefully explain the whole concept of digital media to someone who doesn't get it and isn't listening, or claim that SD cards use tiny film?
* Theoretically invoked in [[http://www.youtube.com/watch?v=bgOtnLmJxno this]] ''WebVideo/{{Vlogbrothers}}'' video by Creator/{{John|Green}}, averted once Music/{{Hank|Green}} made [[http://www.youtube.com/watch?v=cWVVKrT-zbc&feature=channel this response]].
* In ''Literature/{{Worm}}'', Tattletale describes the supervillain Night's powers to Skitter this way.
-->'''Tattletale''': Okay, well, imagine that this woman got powers that let her turn into something so wrong that she's got some sort of mental block that keeps her from transforming if anyone can see. Maybe because she's so ashamed of being seen like that. When nobody's looking, though, she's a monster. Lightning fast and all sharp.
-->'''Skitter''': That's...
-->'''Tattletale''': Not even remotely close to the truth. But it's the best I can offer you. Don't take your eyes off her.
[[/folder]]

[[folder:Western Animation]]
* When Kyle on ''WesternAnimation/SouthPark'' learns the truth about the tooth fairy, he doesn't take it well.
-->'''Kyle''': Dad, there is so a tooth fairy, huh?
-->'''Gerald''' What? Oh. Kyle, let's have a little talk.
-->'''Kyle''': Oh my God! You did lie to me.
-->'''Gerald''': No. Kyle, she's just make-believe. Like Peter Pan.
-->'''Kyle''': Peter Pan, too??
-->'''Gerald''': Kyle…
-->'''Kyle''': What about Moses and Abraham?
-->'''Gerald''': Well, they were probably real.
-->'''Kyle''': Probably?! Is {{Atlantis}} real??
-->'''Gerald''': Probably not.
-->'''Kyle''': Wahahahah!
-->'''Gerald''': Look, Kyle, adults make up those things because they're fun for children.
-->'''Kyle''': Fun for children?! Fun for children?! Look at me, Dad! I don't even know what's real anymore! Weaaaah! [runs out the door]
** A more recent episode does something similar... only instead of Santa, it's [[RealPersonFic Slash]]. [[Music/GunsNRoses Yes, that Slash.]]
*** The main focus behind Butters in Sarcastaball. Butters is lead to believe that his sperm is the product of his most inner and pure emotions; leading him to spread it to others. To drink. The episode ends with Butters having an erection, being Butters he summons his dad for answers; his father tells him [[spoiler: that it's a friend compass, it points towards his friends. Right now it points towards upwards, towards Jesus.]] ...[[HilarityEnsues Damn.]]
** Another episode parodies the issues of what to tell kids about drugs as mentioned in the RealLife folder below. A corporation exists in that episode to set up a fake time-travel scenario where an actor playing a future version of the child shows up, claiming to have somehow traveled back in time. The "future" version of the child talks about how after trying drugs, he became a total loser. The episode also mentions anti-drug organizations exaggerating the connection between drug providers and terrorist organizations. In the end, Stan's parents decide that he's old enough to understand a more complicated explanation about drugs.
* The ''{{Kablam}}'' series of shorts "Life With Loopy" often had plots revolving around the lies [[LiteralMinded Loopy]] was told. For instance, she confronted MotherNature after being told thunder is just her bowling.
* ''MoralOrel'' Most of the stuff Orel is told could fall under this category (Children's Crusades being successful due to their innocence, etc.).
* In ''WesternAnimation/TheSpectacularSpiderMan'', when Venom webs up Gwen to a Thankgiving parade balloon, a little boy notices and points it out to his mother. She's visibly shaken, but in an obvious attempt to keep her son calm, she says, "She's so lifelike!"
[[/folder]]

[[folder:Real Life]]
* [[TheTalk Talking to minors about sex]] is an awkward issue, because you don't really want them trying to do it at a young age, but you don't want to ignore the issue and wait for the wrong person to tell them, or worse, [[{{Squick}} show them]]. Peoples' views and methods on telling minors about sex varies. In one specific case, J.K. Rowling was asked exactly what Aberforth had done with goats at a Literature/HarryPotter Q&A session:
--->'''Fan''': In the Goblet of Fire, Dumbledore said his brother was prosecuted for practicing inappropriate charms [JKR buries her head, to laughter] [[BestialityIsDepraved on a goat]]; what were the inappropriate charms he was practicing on that goat?
--->'''JKR''': How old are you?
--->'''Fan''': Eight.
--->'''JKR''': I think that he was trying to make a goat that was easy to keep clean [laughter], curly horns. That's a joke that works on a couple of levels. I really like Aberforth and his goats. But you know, Aberforth having this strange fondness for goats, if you've read book seven, came in really useful to Harry, later on, because a goat, a stag, you know. If you're a stupid Death Eater, what's the difference. So, that is my answer to YOU.
* Talking to minors about drugs; If you tell them the facts that drugs make you feel really good and that some are okay in moderation, they'd likely run off and do them instead of doing their schoolwork, but telling them that all drugs are evil and the same runs the risk of them sneakily trying one drug, surviving and enjoying it, then thinking that all drugs are fine and then doing a harder drug that ruins their lives/kills them. People's views on telling minors about drugs varies a lot, but most choose to exaggerate the dangers for the sake of having a sober child, which to some is a NecessaryWeasel. Not that this is an exaggeration to everyone; the view that all illegal drugs are ridiculously more dangerous than the legal ones (like alcohol) is still strongly present in culture, even though it's ''at best'' a lie-to-children. Unfortunately it is also complicated by the fact that many drugs' side effects are only obvious in the long-term; while the deleterious effects of methamphetamine abuse and addiction to various opiates and sedatives are fairly obvious within the course of a relatively short period of time, long-term abuse of many drugs can cause brain damage, cancer, liver failure, kidney problems, heart attacks, strokes, and other medical problems... a decade or more down the line, and not in 100% of users. This not only makes it hard to gauge how bad a drug is for you in the now, but also means that long-term studies of those who regularly use a given drug are necessary to demonstrate problems - a difficult thing to study when many drugs are illegal. Tobacco and alcohol are the two drugs with the most well-studied long-term impacts, and both are known to cause severe health problems in a significant fraction of their regular users.
* In moments of crisis (for example when someone dies or a natural disaster) adults tend to try to spare their kids from information that they perceive as potentially hurtful and tries to distract from or sugarcoat information. This of course usually serves to make the kid more anxious and less capable to cope with the situation. For this reason, local authorities maintain teams of Counselors and special advisers who are sent into primary schools where a traumatic event has recently taken place- part of their job being telling the teachers how to tell the kids what has happened. They also deal with parents who try to insist that the teachers enforce this trope when it's impossible. A blogger who escaped with her family just barely ahead of Hurricane Katrina later wrote that she had told her kids they were going on vacation. When the kids asked about the huge traffic jams and crowds of terror-stricken people, she said "everybody's going on vacation today." One presumes she told them the truth once they got to safety.
* There are various examples of this in education:
** Early math classes. Expect sentences like "You can't take the square root of a negative," or "You can't subtract 5 from 3," or even that division comes after multiplication in order of operations, while in reality it is done ''with'' multiplication in the order they appear.[[note]]It's only a convention for writing down expressions, and has nothing to do with math. Heaven help you if you try to explain ''that'' distinction to young children. On the other hand, there's been a math equation that's caused controversy for its different outcomes depending on what method you decide to use.[[/note]]
** History classes.
*** Children are taught over-simplified "facts", like "The Roman Empire was destroyed in 476 A.D. by the barbarian invasion". In fact, the Roman Empire in its classic form perished almost two centuries before that date, and was in the process of collapse even longer for various economical and demographic reasons much more complex than a single invasion. In fact, the eastern half of the empire continued on for another thousand years, only ending with the fall of Constantinople in 1453. And a last remnant, the Despotate of Epirus, made it to 1479. The Holy Roman Empire, which claimed to be a successor, lasted until 1806, while the "Third Rome" of Tzarist Russia survived until 1917. Such was the impact of the Roman Empire on historical memory that nations were claiming to be Roman Empires millennia after the Empire fell.
*** Other times, facts are fudged in the direction of giving people credit for things they didn't do. For example, everyone thinks George Washington Carver invented peanut butter. He didn't, but since peanut butter is the only derivative of that legume that the average person cares about, it's rarely corrected.
*** Still other times, facts are fudged to make history seem nicer, or at least more clear-cut, than it really was. Historical figures misdeeds are toned down or in some cases played up in order to create the appearance of clear heroes and villains who, in real life, were usually more morally gray. Often this ties in with propaganda, but sometimes it's just intended to avoid having to answer tough questions. After all, no one wants to have to explain something like the Trail of Tears to a 5-year-old.
** Physics classes, though these tend to be stated as simplifications.
*** "Spherical cows", which is a humorous term used in physics circles to describe the tendency to boil a complex thing down to its most basic components, in order to make calculations easier. The result is answers that are mathematically correct but inapplicable to reality. Comes from a joke where a farmer asked his physicist friend to come up with a way to make his milk cows more productive; the physicist indeed found a way but lamented that it only worked in the case of spherical cows floating in a perfect vacuum.
*** Frictionless surfaces. Again, refers to the tendency to over-simplify problems by removing troublesome variables, in this case the effect of friction. In reality there is no such thing as a true frictionless surface - even a smooth surface with a high-grade lubricant on it will still produce ''some'' friction.
*** There's also the "paintbox" system, in which red, yellow and blue are called the "primary colors". If we're not lucky enough to get a decent physics education by high school, we may take this to our graves. In fact, there are two separate forms of primary color: the colors of light and the colors of pigment. The primary colors of light are red, green and blue, while the primary colors of pigment are magenta, yellow and cyan. Which, granted, are KINDA red, yellow and blue, but not quite.
*** Newton's laws of motion. Despite the fact that Einstein's theory of relativity disproves them, they are still taught in high schools and lower-division college classes because they produce practically identical results as long as you're dealing with masses and velocities in a familiar range, as opposed to things as small as atoms or things moving hundreds of kilometers per second. In fact, Newton's laws are such an accurate approximation over this range that our measurements can't tell the difference between the Newtonian and Einsteinian answers. And many high school teachers either don't understand Einstein's mechanics themselves, or if they do, [[ViewersAreMorons feel that their students won't]]. It's only when you extrapolate to extremes (size, mass, velocity, etc) that Newtonian physics start to break down and you start to observe Einsteinian rules. Indeed, in the real world, people use Newtonian mechanics vastly more often than they use relativity, just because they're much easier to calculate and give the same answers unless you're dealing with microscopic objects or things on a planetary scale - satellites are one of the few everyday objects that people deal with (thanks to satellite television and GPS) which actually have to take relativity into account.
*** Most visualizations of relativity, mostly because space is three-dimensional, and curving three-dimensional space is nowhere near as visually simple as curving a two-dimensional mat. Actual visualizations of relativity are possible, but are much more difficult to grok.
** Chemistry classes.
*** Like physics above, students learn several different models on how chemical reactions work, all inaccurate to various degrees but getting closer to the truth each time. Also like physics above, these models generally produce identical results as long as you're not getting too deep into the inner workings of a reaction.
*** The "Solar System-like atom" is still a common image and is generally presented to children when discussing atoms. And another thing about atoms--everyone is taught early on that atoms are the smallest things there are. That itself ignores protons, neutrons and electrons which are then said to be ''the'' smallest things there are. Then they tell you about quarks, which even escapes the realms of chemistry altogether.
*** Also regarding the "Solar System atom", it is known as the "Bohr atom" and was one of the earlier hypotheses when quantum physics was still being discovered. Unlike Newtonian mechanics, it's not an approximation that gives useful answers, but it's a heck of a good image. Bohr himself later insisted on the Copenhagen Interpretation of quantum physics which insists that what the maths says happens really happens and we shouldn't use equivalent mental models (like "many worlds") to make it easier to understand. That is, the man who invented the "solar system atom" later objected to idea of using it as a Lie to Children.
** Geology classes.
*** The mantle of the Earth flows under loads, has convection cells, and provides the buoyant force that the lithosphere (or crust) floats on. ''It is not liquid.'' It's a very hot, plastic solid called a rheid that can flow, but only on long time scales. It only melts into a liquid when the temperature and pressure are right. This is an understandable misconception because, first, kids are also taught that if it flows at all, it must be a liquid, and second, their only experience with the interior of the Earth is liquid lava shooting out of volcanoes.
*** In a lie-to-high-school-students, the convection cells in the mantle do bring hot material to the crust and cause things like hot plumes (like the one that created the Hawaiian Islands), but they don't account for the movement of the tectonic plates as they spread out, cool, and sink. Rather, the buildup of material at mid-oceanic ridges is pulled down by the Earth's gravity and pushes the plates away (ridge-push) and when a plate is subducted under another plate, it is literally sinking into the mantle and pulling the rest of the plate with it (slab-pull).
** Biology classes.
*** Children are usually taught that there are two types of cells: Animal cells which are squishier and exist in animals, and Plant Cells which have more rigid cell walls and chloroplasts and exist in plants. In reality there's a third cell type: Prokaryotic. Plant and Animal cells are both grouped together as Eukaryotic cells, and even within these three groups there is a ''lot'' more diversity than what the average biology class teaches.
*** When learning immunology in high school, you'll be taught that there are Killer T cells and Helper B Cells. While largely true in that T cells are the ones involved in cell killing, there are two types of T cells; "killer" CD8+ T cells and CD4+ T helper cells.
[[/folder]]
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