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7,178 cards, already written and checked, on the subjects people actually study. Flip through a deck to revise, or take it as a timed, scored quiz and send the result to a friend. Nothing to install, no login, and the first 30 cards of every deck are free — 30 of the decks are no longer than that, so they play free in full.

  • Timed quiz mode. Answer before the card flips, get a score, share the result.
  • Practice mode. Flip both ways, nothing scored — the mode you actually revise in.
  • Challenge a friend. Send the link; they play the same deck and compare times.
  • Every card was checked, and we say which way — a chemist read the periodic table, an anatomist the bones and muscles, a phonetician the homophones. Not a sample: 5,420 cards across 30 decks, all of them, and one deck was withdrawn from the site rather than shipped with a known problem. The other 48 came a different way: two independent published sources for every card, enforced by a script, then re-verified by a second specialist working from sources of their own.

Maths flashcards

6 decks · 726 cards

English & reading flashcards

13 decks · 1,017 cards

Greek & Latin RootsThe root families that unlock whole shelves of vocabulary — each one with its meaning, its origin and the words it lives in.192 cards · 4–10Play nowPrefixes & SuffixesEvery prefix and suffix a vocabulary unit teaches, each with what it does to a word and three words it does it to.114 cards · 3–9Play nowLiterary Devices & Figurative LanguageThe figurative language, poetry and story terms an exam question names, each with a plain example.111 cards · 6–12Play nowHomophones & Commonly Confused WordsThe word sets that cost marks in every piece of writing, each with a one-line way to tell them apart.150 cards · 3–8Play nowIrregular VerbsEvery irregular verb an English class is asked for, with its past tense and past participle in the order a test asks for them.175 cards · 3–10Play nowProofreading & Editing MarksThe US proofreaders’ marks of the Chicago list, each described in words, not pictures.30 cards · Grades 6–12Play nowPunctuation Marks & What They DoEvery common punctuation mark, the job it does, and where US and UK usage part company.23 cards · Grades 4–10Play nowThe Eight Parts of SpeechThe eight traditional word classes, each with a definition card and a spot-the-word card.16 cards · Grades 4–9Play nowIPA Symbols for English SoundsThe IPA symbols two dictionary keys use for the sounds of English, with the accent each one belongs to.52 cards · Grades 9–12Play nowCollective Nouns for AnimalsGroup names for animals — every one checked in a dictionary, and the medieval ones marked.43 cards · Grades 4–12Play nowLatin Abbreviations in Englishe.g., i.e., cf., viz., ibid. — what each one stands for, what it means and where it belongs.29 cards · Grades 7–12Play nowShakespeare: Every Play by GenreAll 38 plays with the genre the 1623 First Folio gave them — and where modern editors disagree.38 cards · Grades 8–12Play nowBloom's Taxonomy: Verbs by LevelBoth editions side by side: the 1956 nouns, the 2001 verbs, and which level a verb really sits at.44 cards · Grades 9–12Play now

Science flashcards

16 decks · 804 cards

Periodic Table: All 118 ElementsSymbol on the front; name, atomic number and category on the back.118 cards · Grades 7–12Play nowBones of the Human BodyEvery named bone, with the region it belongs to and where to find it.106 cards · Grades 9–12 / health science CTEPlay nowMuscles of the Human BodyOrigin, insertion and action for the muscles a course actually names.102 cards · Grades 9–12 / CTEPlay nowPhysics Formulas & SI UnitsBase units, prefixes, derived units and the formulas that use them.117 cards · Grades 9–12Play nowAstronomy: Solar System & the 88 ConstellationsAll 88 constellations with their brightest star, plus the planets.122 cards · Grades 5–12Play nowMohs Hardness ScaleThe ten reference minerals, the field-test objects, and why the steps are not equal.17 cards · Grades 6–12Play nowThe Beaufort Wind ScaleForce 0 to 12 with the WMO name, the speed in knots and mph, and what you see.13 cards · Grades 6–12Play nowCloud Types & What They MeanThe ten WMO cloud genera with their official definitions, plus the three height levels.16 cards · Grades 5–12Play nowThe Geologic Time ScaleEons, eras and periods with what defines each, on the current ICS chart.29 cards · Grades 8–12Play nowMetric & SI Prefixes: Quetta to QuectoAll 24 SI prefixes, quetta to quecto — symbol, power of ten and the case rule.24 cards · Grades 6–12Play nowSI Base & Derived UnitsThe 7 base units and all 22 named derived units — what each measures and how it is fixed.29 cards · Grades 9–12Play nowPeriodic Table: Groups & FamiliesEach named group, block and family — which elements it holds and what defines it.19 cards · Grades 9–12Play nowScience Lab Equipment28 pieces of lab apparatus and what each is really for — including the confusable pairs.28 cards · Grades 7–12Play nowTaxonomy: Domain to SpeciesThe ranks in order, what each one means, the mnemonics, and one worked example.18 cards · Grades 6–12Play nowThe Human Body SystemsThe eleven organ systems — the organs in each and the job each one does.23 cards · Grades 6–12 / health science CTEPlay nowBlood Types & Transfusion CompatibilityABO and Rh, antigens and antibodies, and who can give red cells or plasma to whom.23 cards · Grades 9–12Play now

World languages flashcards

14 decks · 1,784 cards

Spanish 1 Core VocabularyThe first-year Spanish word list, nouns printed with their articles.326 cards · Grades 6–12Play nowSpanish Present-Tense ConjugationEvery present-tense form of the verbs a Spanish 1 or 2 class drills.150 cards · Grades 7–12Play nowFrench 1 Core VocabularyFirst-year French vocabulary with the article on the front and the gender on the back.325 cards · Grades 6–12Play nowGerman 1 Core VocabularyFirst-year German vocabulary with der, die or das printed on every noun.323 cards · Grades 6–12Play nowJapanese Hiragana & KatakanaEvery kana a beginner has to recognise — both syllabaries, straight through.208 cards · Grades 6–12Play nowThe Greek AlphabetAll 24 letters, upper and lower case, with their names and Classical Attic sounds.24 cards · Grades 6–12Play nowThe Russian Cyrillic AlphabetAll 33 letters, with the six that look Latin but are not flagged on the card.33 cards · Grades 6–12Play nowThe Hebrew AlphabetThe 22 letters and the five final forms, with Modern Israeli sounds.27 cards · Grades 6–12Play nowKorean Hangul: Consonants & VowelsEvery hangeul letter with its Revised Romanization value — South Korea's own standard.43 cards · Grades 6–12Play nowThe Arabic AlphabetAll 28 letters in their independent form, each with its name and romanization.33 cards · Grades 6–12Play nowSpanish Days, Months & SeasonsThe whole Spanish calendar — seven days, twelve months, four seasons, all lowercase.23 cards · Grades 6–12Play nowFrench Days, Months & SeasonsThe whole French calendar — seven days, twelve months, four seasons, all masculine.23 cards · Grades 6–12Play nowGerman Days, Months & SeasonsThe whole German calendar — every day, month and season masculine and capitalised.23 cards · Grades 6–12Play nowTagalog Core VocabularyCore Tagalog words with the markers, pronouns and the po that a learner actually needs.223 cards · Grades 6–12Play now

Social studies flashcards

7 decks · 688 cards

Career, tech & modern flashcards

15 decks · 1,097 cards

Computer Science & Coding VocabularyThe vocabulary an intro coding course uses before it ever explains it.119 cards · Grades 6–12Play nowMedical Terminology Word PartsLearn the parts and you can read a term you have never seen before.479 cards · Grades 9–12 / Health SciencePlay nowFinancial Literacy & Personal Finance TermsThe money vocabulary a first pay cheque, a first loan and a first tax form all assume.121 cards · Grades 7–12Play nowNATO Phonetic AlphabetAll 26 ICAO/NATO code words plus the ten spoken digits, with official pronunciations.36 cards · Grades 6–12Play nowMorse Code: Letters, Numbers & PunctuationInternational Morse for A–Z, 0–9 and punctuation — pairs with our Morse code translator.48 cards · Grades 6–12Play nowBraille: Letters, Numbers & PunctuationUnified English Braille by dot number — pairs with our braille translator tool.52 cards · Grades 6–12Play nowOSI Model: The Seven LayersAll seven OSI layers by number and job, what runs at each, and both order mnemonics.24 cards · Grades 9–12Play nowCommon TCP & UDP PortsThe port numbers a Network+ or CCNA exam asks for, each with its service and transport.36 cards · Grades 9–12Play nowHTTP Status CodesThe five status classes and the codes worth knowing, defined against RFC 9110.35 cards · Grades 9–12Play nowCommon File ExtensionsWhat each common file extension actually is, and the kind of program that opens it.38 cards · Grades 6–12Play nowPhlebotomy Order of DrawThe CLSI tube sequence — colour, additive, purpose, and why the order is not optional.15 cards · Grades 11–12 / health science CTEPlay nowResistor Colour CodeDigit, multiplier and tolerance for every band colour, plus 4- and 5-band readings.27 cards · Grades 9–12Play nowChess: How Every Piece MovesEvery piece's move, plus castling, en passant, promotion and the drawing rules.24 cards · Grades 4–12Play nowThe Five Mother Sauces & Their DaughtersThe five leading sauces of the English Escoffier, what each is built from, and the daughters of each.26 cards · Grades 9–12 / culinary arts CTEPlay nowFire Extinguisher Classes & PASSFire class letters in the US, Europe and Australia — and why they do not match.17 cards · Grades 9–12 / CTE and workplace-safety courseworkPlay now

Music, art & health flashcards

4 decks · 316 cards

Early years flashcards

3 decks · 746 cards

Questions about these flashcards

Are these flashcards free?
Yes. The first 30 cards of every deck are free to play and free to download, with no account and no sign-up. 30 of the 78 decks are no longer than that, so they play free in full. Unlocking the rest of a longer deck is a one-off $2.99, or $11.99 a month covers all 78 and removes the ads.
Can I play flashcards online without downloading anything?
Yes. Every deck runs in the browser on a phone, tablet, Chromebook or projector. There is nothing to install and no login. Practice mode flips through the cards in either direction; game mode makes you answer each card before it flips, times the run and scores it. Every deck is dealt in a fresh random order each time you open it, so you are recalling the card rather than its position.
What subjects are covered?
78 decks across maths, English and reading, science, world languages, social studies, career and tech, the arts and early years — including Spanish and French vocabulary, all 118 elements, the times tables, the bones and muscles of the body, Greek and Latin roots, and the Dolch and Fry sight word lists.
Can I use these flashcards in my classroom?
Yes. Project a deck and run it as a whole-class quiz, or share the link so students play on their own devices. No student accounts are created and no student data is stored.
Can I make my own flashcard deck?
Yes, free. The live flashcard maker turns any list of terms and definitions into a deck with its own shareable link and QR code, and the printable maker lays the same list out as double-sided cards to cut up.