| A | B |
|---|
| flame | the often bright zone of burning gases and fine suspended particles that forms as a result of a fire |
| flammable | easy to set fire to and capable of burning very rapidly |
| ignite | to set fire or catch fire |
| ignition | the act or process of igniting, or starting a fire |
| microscope | an instrument in which the light reflected from or projected through a tiny object is passed through a combination of lenses so as to produce a magnified image of the object that is large enough to be seen or studied |
| microscopic | to small to be seen by the eye alone but large enough to be seen through a microscope |
| grateful | appreciative; thankful |
| gratitude | appreciation or thankfulness, as for something received or kindness shown |
| athlete | a person who competes or takes part in sports |
| athletic | of or for athletics |
| eruption | the fact or example of erupting, or bursting forth |
| spectacular | of the nature of a spectacle; sensational |
| abrupt | unexpected; sudden |
| description | the act, process, or technique of describing; verbal representation |
| specimen | a sample used for analysis |
| speculate | to think deeply on a given subject; ponder |
| manuscript | a handwritten or typewritten book, paper, or article, as distinguished from a printed copy |
| rupture | the act or process of breaking open or bursting |
| transcribe | to write or type a copy of; write out fully, as from shorthand notes |
| inspector | a person who inspects or examines |
| mystery | anything that arouses curiosity because it is difficult to explain or is a secret |
| literary | of literature or authors |
| treachery | willful betrayal of trust; treason |
| theory | an assumption or guess based on limited information or knowledge |
| elementary | of, involving, or introducing the fundamental or simplest aspects of a subject |
| boundary | an edge, limit, or dividing line marking the place where a country, state, or other region ends |
| machinery | machines or machine parts as a group |
| imaginary | having existence only in the imagination; unreal; fictitious |
| satisfactory | sufficient to meet a demand or requirement; adequate |
| observatory | a place designed and equipped for making observations, as in astronomy or meteorology |
| technique | a systematic procedure or method by which a complicated task is accomplished, as in science or art |
| fatigue | physical or mental weariness or exhaustion resulting from hard work or strain |
| amateur | a person who engages in an art, science, or sport for enjoyment rather than for money |
| bouquet | a bunch of flowers |
| vague | not clearly expressed; lacking clarity |
| boulevard | a broad city street, often lined with trees |
| portrait | a painting, photograph, or other likeness of a person, especially one showing the face |
| debris | the scattered remains of something broken, destroyed, or discarded; fragments; rubble |
| plaque | an ornamented or engraved plate, slab, or disk, used for decoration or to carry an inscription on a monument |
| depot | a railroad or bus station |
| nucleus | a central or essential part around which other parts are grouped; a core |
| nuclei | plural, a central or essential part around which other parts are grouped; a core |
| analysis | the process of separating a subject into its parts and studying them so as to determine its nature |
| analyses | plural, the process of separating a subject into its parts and studying them so as to determine its nature |
| diagnosis | the act or process of examining in order to identify or determine the nature of a disease or malfunction |
| diagnoses | plural, the act or process of examining in order to identify or determine the nature of a disease or malfunction |
| fungus | any group of plants, such as mushroom, mold, yeast, or mildew, that have no green coloring and that obtain their nourishment from living on dead plant or animal substance |
| fungi | plural, any plant, such as mushroom, mold, yeast, or mildew, that have no green coloring and that obtain their nourishment from living or dead plant or animal substance |
| oasis | a fertile spot or area in the desert, watered by a spring, stream, or well |
| oases | plural, a fertile spot in the desert, watered by a spring, stream, or well |
