Explore Lexie study sets and formulas

Skeletal System Quiz & Flashcards

Every bone, landmark and count from a first anatomy course: skull, spine, rib cage, limbs, carpals and tarsals. Flashcards, matching and a typed quiz. Free in your browser, no sign-up.

AP Biology Unit 1 Practice Test

All seven topics of AP Bio Unit 1, from water and hydrogen bonding to protein structure: flashcards and practice questions. Free.

Medical Terminology Flashcards & Quiz

55 essential medical prefixes, roots and suffixes with meanings and example terms: drill flashcards and a quiz. Free in your browser, no sign-up.

Parts of the Brain Flashcards & Quiz

19 brain structures with locations and functions, from the medulla to Wernicke’s area: flashcards and a quiz. Free in your browser, no sign-up.

Cranial Nerves Flashcards & Quiz

All 12 cranial nerves with types and functions, plus the eye muscle assignments: drill flashcards and a quiz. Free in your browser, no sign-up.

Amino Acids Flashcards & Quiz

All 20 amino acids with three-letter and one-letter codes and side chain classes: drill flashcards and a quiz. Free in your browser, no sign-up.

Enzymes Flashcards & Quiz

Active sites, inhibition, rate factors and the key digestive enzymes: flashcards and practice questions for GCSE and AP. Free, no sign-up.

Cellular Respiration Flashcards & Quiz

Glycolysis, the Krebs cycle and oxidative phosphorylation with full ATP accounting: flashcards and practice questions. Free, no sign-up.

Mitosis and Meiosis Flashcards & Quiz

Every phase of mitosis and meiosis plus the full comparison table: flashcards and practice questions. Free in your browser, no sign-up.

Photosynthesis Flashcards & Quiz

Light-dependent reactions, the Calvin cycle and chloroplast structure: flashcards and practice questions for GCSE, A-level and AP Bio. Free, no sign-up.

Stoichiometry Practice Questions & Flashcards

The mole road map, mole ratios, limiting reagents and percent yield with worked examples: practice questions and flashcards. Free, no sign-up.

Atomic Structure Flashcards & Quiz

Subatomic particles, isotopes, electron configuration and the atomic models: flashcards and practice questions. Free in your browser, no sign-up.

Functional Groups Flashcards & Quiz

All 18 standard organic functional groups with structures and examples: drill flashcards and a quiz. Free in your browser, no sign-up.

Polyatomic Ions Flashcards & Quiz

All 33 common polyatomic ions with formulas and charges: flashcards, a 50-question quiz, and the -ate/-ite naming patterns. Free in your browser, no sign-up.

太郎の新しい学校生活

A study set using all 46 Japanese hiragana characters

Hiragana Chart

A study set covering all 46 Japanese hiragana characters and their romanized pronunciations.

El Banquete de San Sebastián

A short Spanish story set at a food festival in San Sebastián, weaving in vocabulary for ingredients, meats, and seafood.

Spanish Food Vocabulary: Ingredients & Seafood

Spanish ingredients and seafood/meat vocabulary for ordering and reading menus in Spain.

Photosynthesis: The Light-Dependent Reactions

AP Biology reference on the light-dependent reactions of photosynthesis: thylakoid structure, chlorophyll, photosystems I and II, photolysis, electron transport, NADPH, and photophosphorylation.

Balancing Chemical Equations

AP Chemistry reference on balancing equations: conservation of mass and charge, coefficients, polyatomic ions, redox half-reactions, net ionic equations, and disproportionation.